Larian never promised to implement gameplay ideas of random people from the forum and they should never do that. They wanted feedback, which helps them know what features people like and what dislike but Larian will be working according to their own vision, not a vision of some angry forum poster. Obviously some feedback on feedback would have been great but I understand why they want to keep silence. People just get angry if they are bluntly told that their ideas are horrible and won't be implemented.
I get angry when they specifically ask us to give feedback on the evil path and then it turns out it's barely implemented and on top of that we get a mailed update saying "74.85% of you stood with the Tieflings, and 25.15% of you sided with Minthara. Good outweighs evil, it seems. " See the multiple evil path threads why.