I think I understand why Bioware closes the forum. There are people who feel that the mood on the forums helped spoil sales of DA2, ME3, and why not DA:I too? And now they don't want to take any chances with ME:A.
And yeah, why not? It seems reasonable that it could have had some impact. ...But, just a moment. - Shouldn't it? I mean: When they release things like the worked over DA as a wannabe-Japanese game? The uneducated, literary naive and childishly unimaginative non-ending of ME3? Frankly, I'm cruel enough to think that it served them right. Tsk, tsk, what were they thinking?
But all games have flaws. And even very flawed games can be a lot of fun. Uniquely fun. No game deserves to judged because of some flaws. DA:I's PC-interface comes to mind. Very disappointing, but the game was still playable. Did the forum rage against the PC-UI hurt DA:I sales? Maybe. And in that case DA:I didn't deserve that. But hey, - how much did the previous DA2 hurt DA:I sales?
Actually, someone is going to get some sort of answer to that question. Because thanks to the forums closing down, we will be able to see how much the ME3 ending hurts ME:A sales.
So I'm disappointedly and reluctantly 50/50 in favor of this move. ME:A is too important to take any chances. If I had to vote on it: Yeah, close the forum. Hope they learn something from this.
Me? I would have killed both franchises after DA2 and ME3 and never bothered to try kick life in them again. Of course, - I wouldn't ever remake a franchise sequel to a different kind of game, like DA2. And whoever came up with the idea for the ME3 end wouldn't get his way. Actually, having proven his incompetence so grimly, he would never get to write anything at all ever again. So I would never have had that problem in the first place.
So ultimately, yes, lets try save ME4 by any means. It's justified. It could be interesting to see how it works out. But the blame for Bioware's dilemma doesn't lie with the forums. They made their own bed. Long ago. ...But so with that, move on.
Other social media, Bioware seem to have less friends on Reddit. It's probably where all the people who were permabanned during the outrage against DA2 hang out. As for Twitter, I never go there, because if I saw someone post on Twitter, I could never respect that person again.