Susan G
I wasn't around when the forum hosts were first added and some of the subforums created. I'm not crazy about the tone/content of some of the forum hosts' posts, esp. when they say they like or respect certain members or particularly value their input, yada-yada, or argue ad infinitum a single point to make sure they're seen as "right." It shouldn't matter whether a host "likes" or "respects" a forum member when they're applying the rules, IMO.
Maybe they're in an untenable position as members *and* hosts, but it seems to me they should try to be objective and leave out the subjective stuff, if possible.
I don't think the personalities of the hosts have changed much, if at all, since becoming hosts and because they are members, they continue to post like they did as members. Comments about liking or respecting someone were present before there were hosts.
The only potential "host overlay" is that those comments could now be viewed as having "the force of law" or whatever, but I think it's just humans being human. Another consideration is there are two ways to influence behavior. One is to call out something negative in the hope that people will stop doing it. The other is to recognize something positive in the hope that it will encourage people to continue doing that.
I know what you mean about arguing ad infinitum, having been involved in some pretty long back-and-forths myself

. But if someone brings up additional points, then not answering them appears evasive. Or if someone misrepresents a position, then either something has been misunderstood so clarification is required, or there is deliberate disingenuousness and then that also needs to be addressed.
I will say that sometimes the "threads-that-never-end" just continue to deteriorate and signify nothing, but sometimes it takes a lot of posts before something really meaningful appears that puts things in a new light. For example, the no notation fixes has both...I think those "five most important bugs" post was truly helpful, but then as Larry pointed out, the thread deteriorated further.
It's all good. As long as humans are involved, there will be imperfections. It's how we react to the imperfections that either moves things forwards or backwards.