I don't think it was objectively dumb, because I don't agree with the assertion that the internet has "astronomically increased the speed and efficiency of communications" over methods that came before it, and it really hasn't had a huge societal impact even for the minority of the human race that actually has regular access to it.
To put things in perspective with an example, before the starting of trans-Atlantic wired telegraph services in the 1860s, it took around 3 weeks to send a message across the ocean. The telegraph reduced that to a few minutes. If we use an example of a telegraph message long enough that takes 10 minutes to convey and do the math, that is an increase in efficiency by an order of magnitude of over 2500x. The ability to transmit messages across entire continents in minutes rather than weeks or months forever changed how human society functioned. Entire wars used to be fought because of the inability to communicate over long distances, for example.
I think I said this before, but the fact that the telegraph increased speed (for some things) more than the internet doesn't mean that the Internet didn't also increase speed. Irrelevant. Plus, the telegraph only increased speed and efficiency for a single type of communication (written letters). The internet increased speed and efficiency for pretty much every possible type of communication. That's significant.
The internet, by contrast is only faster than the 1960s fax machine (actually, the patent for the first such device is from 1843 and used telegraph, but I'll use the more modern example that ran on telephone lines) it replaced by the seconds or minutes it takes the fax machine to print the sent message. The internet takes 2 seconds or so to send a 500 word E-mail from New York to London, whereas a fax machine would take that time and an additional 8-10 seconds to print the message, an efficiency improvment that can be measured in single digits, around 5-7x depending on message length. A couple seconds is not enough to make much of a difference unless you are trying to avert a nuclear war via email for some reason.
Ironically, you're focusing only on a short text email, while using a communication medium (an internet message board) that was literally not even possible before the invention of the internet. Even telephone party lines could only accommodate like 5 people total.
Also, what about sending a 300 page business document, which would take 30 minutes to an hour on most fax machines (particularly the ones that existed prior to the invention of the internet) and would be spit out in poor resolution B&W, and now takes 10 seconds to send it in high-res color? What about the ability to snap a photo of what you're looking at with your phone and send it to 30 people in just a couple of seconds, so they can see what you're talking about instead of you having to verbally describe it? Or WebEx, where you can have 30 people all over the world looking at what you're doing on your computer screen, turning a 3-hour phone call into a 30 minute call? I don't think I need to give more examples. Saying the internet wasn't a gigantic improvement in speed and efficiency of communications is ridiculous. I can't imagine you have ever worked in a business setting.
You may mention something like Skype, but it isn't any faster than the methods that proceeded it. Obama can call Putin no faster today than Kennedy could call Krushchev in 1963. The internet has also not revolutionized commerce to the extent many proponents claim. Mail order has existed for as long as the medium itself, and (to use Kennedy in the same paragraph again for convinence) that same US president was assasinated by a Mail order rifle bought from a physical magazine/ telephone combo in 1963. Even if you order something from Amazon instead, it must still be manufactured by traditional means, and physical shipping methods must be used to actually get it to you, so the reduction in time is once again perhaps a few minutes, not a significant change. Given, the internet does have the caveat of instantaneous transmission of digital media, but as of now that is mostly used for frivolous entertainment purposes such as movies, music, games etc.
No, I'm not going to mention Skype. Skype enhances communication, but doesn't speed it up.
The internet's actual impact on human society is mostly measured in how people in developed countries now spend their out of work hours and access entertainment. Facebook/ Skyping, playing online games, watching streamed TV shows or engaging in frivolous discussion on video game forums. It has also improved the efficiency and ease at which we can find information, though not to the point that has drastically altered the way society functions, because libraries and TV news networks still exist. The "digital age" has not changed the way we live the way the agricultural or industrial revolutions did, not even close. It hasn't even changed our lives or society in a fundamental manner as much as a seemingly mundane invention like the washing machine did, as I mentioned previously by pointing to its role in changes to the role of women in society and thus economic, cultural and social family dynamics.
Political, economic and social norms and paradigms are pretty much the same as they were in the 1980s or earlier before it, and the changes that have taken place have not been a result of the internet. We vastly overestimate the impact of the internet only because of its relative novelty and how it affects us now. It's neat, but ultimately trivial at this point, as evidenced by the fact that most of the world's population does without it with little adverse effect.
I'm not arguing that the internet has changed the way we live. I'm saying it enhances our ability to communicate. If you're in a developing country that still hasn't adapted to the progress of the industrial revolution, you have a lot bigger concerns than communication. I never argued with that.