Ok smart guy, then you can't see the difference between a science fiction story and a horror story! Then you can't see the difference between an ancient god and a synthetics! You just confirmed what I was saying about your level of reading : thinking that Lovecraft and Bioware had the same purpose when they wrote, it's just totally absurd. Bioware didn't want to make the "best monsters", you wanted them to do so. And again you completely failed in understanding the writing of the two first games. (Maybe you didn't get it but implicitely I said that I have read Lovecraft!)
Look pall, I don't know if English is your first language or not, but your posts are nothing more than incoherent ramblings. All you do is insult my intelligence both literally and metaphorically. If there is any concise point to your post then I don't see it. You're also completely missing my point.
But alright, I'll humor you, I'll try to reply to your ramblings to the best of my ability. A few points I have to make:
1) Sci-fi and horror are not mutually exclusive genres. More often than not, both genres overlap each other (point in case: Aliens, The Predator, The Terminator, The Thing, War of The Worlds, the list goes on). Just because Mass Effect is sci-fi does not mean it can't take elements from the horror genre. In fact, it already did (case in point: ME2's Overlord DLC, the human reaper and the entire Collector sub-plot).
2) The reapers are very much presented as ancient gods in ME1 and ME2. Ancient synthetic gods. Hell, in ME2 the derelict reaper is literally referred to as an ancient god ("even a dead god can dream")!
3) I'm pretty sure BioWare wanted to make the reapers interesting monsters. In ME1 and ME2 they definitely were interesting! Mostly because they really were mysterious, unknown and incomprehensible. That's what made the reapers great! Then in the ME3 ending they completely threw that element out of the window and the reapers turned out to be just a bunch of cyborgs doing the bidding of some insane A.I. with stupid circular logic.
4) I do not fail to understand the writing of ME1 and ME2. I don't know what kind of insane headcanon you made up, but the actual games are not that difficult to understand. Seboist already summed up the writing of all 3 Mass Effect games and how the games are inconsistent with each other, so I'll just repeat what he said:
ME1: The reapers are ancient synthetics who do not value organic life and exterminate all advanced organic life every 50.000 years for unknown reasons. That's all we know about the reapers at that point. That's not difficult to understand. And honestly, that's all we need to know about the reapers.
ME2: The reapers are ancient cyborgs who only value organic life that can be used to reproduce more reapers (in our cycle's case: only the humans). We still don't know why they do this, which is fine. Again, not difficult to understand.
ME3: The reapers are ancient cyborgs who value all organic life and they turn all advanced organics into reapers as a supposed act of kindness. This is where the reapers stopped making sense. Not only is their "solution" based on a false premise, but their "solution" itself is illogical and contrived.
The reapers are not like Cthulhu, but they had the potential to be like him. All BioWare had to do is keep the reapers' motivation a mystery and add more creepy sections to the series like the derelict reaper from ME2.
Ironically, the Leviathans are scarier and more Lovecraftian than the reapers turned out to be. If BioWare simply took the nature and origin of the Leviathans and applied that to the reapers instead, the reapers would have been infinitely better and more interesting.