I would say that repetitive topics are a fair issue for what needs to be addressed. I also find them helpful in so much that as independant players, we often find ourselves needing to bounce ideas off each other to figure out what works best for us. The solution one player reaches may not be the best answer for another player, even if they have a similar issue. Is it worth partaking in thread necromancy or hijacking to try and get elaboration on a point, or is it better to make a fresh topic that discussion can continue in? So long as we're not stuck at either extreme, I don't see much of a problem.