Your memory most probably better than mine...
That was a good chunk of the publicly voiced concerns, but Electronic Home Publishing had been the owner for a couple of years already. The history of the Live Audio Board is almost as colorful as it's founder, Dave Stevens...It wasn't so much a software controversy, but the "new owners" were dumping the archives into the ether.
A lot of folks were pissed that all that freely donated accumulated knowledge and wisdom was to be made unsearchable, and effectively lost.
(if memory serves...)
I think the decline in user-ship has to do more with facebook groups, better results from google on longer questions and youtube videos for everything. I have seen a decline in pretty much every forum I frequent. Its an interesting social change and in my opinion not a positive one.The LAB forums became a mess around that time, and as Tim said, there was lots of drama and toxic stuff going on on many levels.
A bunch of us LAB regulars jumped ship. I for one barely ever went back to the LAB after that. This forum has slowed down in the last few years, but the early days were truly great times. I think we should group together to do a marketing push for these forums and see if they can gain some traction again.