Users will often find out new things about a bug, even a month or more after the last post about it. If Asobo have any sense (as I hope they have), they will review the forum comments on any bug they’re just about to start work on, just to make sure they understand the problem, and what users have found out.
It is common sense that any item that is going to eventually be adressed by Asobo should have a centralised thread containing all pertinent comments, including changes noted during previous updates. It will make their lives easier, and hopefully get a result sooner.