That is no different than someone coming on and declaring a community dead. You cannot on one hand tell him he is wrong and declare the opposite, basically based on your opinion regardless of any facts. You also seem to think quantity is all that is important. All i can tell is you either are unaware of, or you choose to ignore what is being done, this community is very active with a lot of large projects in process.
Frankly if you look at the vault, the content RWS and hellfire has done alone outnumbers what a lot of other communities of far more popular games have in total. As long as a few key individuals keep working at the game, the modding is not going anywhere, nor will the community die.
You can have a few thousand script kiddies swapping textures, tweaking game config files, and removing all the clothing on the characters, and stating how they added things which are frankly trivial on one game, and a single person with real talent can outdo all of them by releasing major revisions to the game itself.
Now how on earth do you say this community is even near being dead. Well if it's dead then it's a zombie game cuz there are lot of dead things still moving around and a lot of people telling you, you got your facts wrong.
If you want to measure how dead a community is, go look at what the community is releasing, and look at the quality of it. See how much game play value it adds. Go on IRC and ask people what they are working on. See the last date it was released and look at how many are still working on things for this game. Look at the upcoming modules which are nearing release, and look at how often "major" obstacles in the game are over come by the community.
Obviously a game as old as Baldur's gate will not have a lot going on at this point, but it's still got a few modders who know it, who are doing content for it, which makes it still playable. Those few you disparage as hanging on, are the community for that game, and as long as they are discovering new things they can rework in the game, baldur's gate will keep going on.
And if one single person does a great module, which happens to be better than the campaign released by the devs. Well then one single person is all you need to keep the community from being dead, and it gives everyone who wants to play it reasons to do so. That is far different than a web page, that is real new content you can use to keep getting value from a game.
Frankly i see no point for myself in modding Dragon Age. It's far more limited, it's only for single player, it's tied to Dragon Age lore, it's got far fewer options than D&D and while it has many advantages, it's toolset and how you mod it just is not good enough for me to leave NWN2, frankly until a lot of major issues are sorted out, i can do more things in NWN2 since even the engine itself can be rewritten as we see fit. The improved models just don't look better to me than what Hellfire is doing.
Come back and tell me when the DA community is capable of doing complete models and animations, has as many classes as NWN2's base game, and is capable of doing multiplayer games, and has something similar to NWNx for adding new features to the core of the game. All of this can be done for Dragon Age, but it's already much more developed for NWN2. Unlike Dragon Age, NWN2 does what i need it to do ( but that is just my opinion ) and the NWN2 community works very well together.