I haven't looked through the topic yet, but I just wanted to say...
While it is true that I have seen an increase in blunt and somewhat rude posting in the past few months, I think there are a lot of members here that are a bit too sensitive as well...all in all, this is still a very friendly and helpful site.
Well, still being relatively new (time wise) here, I haven't seen near as much rude postings as on other sites, and this forum is far more friendly to other users, which is why this is the only betta forum I frequent.
That said, I attribute a lot of what less-then-smiley posts I see on either:
1. There are umpteen-bajillion other threads about the same emergency or question, all relatively new and the question has been answered the same way almost every time. A little bit of reading beforehand could have saved us the trouble, and they could have asked any other questions on those previous threads. (Yay for research!)
2. Questions that members ask are going unanswered that drastically affect the answer involved. We ask for water readings, tell you how to get them, and the person will not cooperate. After your 3rd or 4th thread like this, it gets frustrating because there is a betta in trouble, and our help isn't making it to him.
But when I posted on here about Möbius having fin rot, I wasn't jumped on here. I didn't hear: "You obviously don't know how to take care of your fish, or he wouldn't have an illness." Even his previous owner didn't say "OMG you're a fish killer, I want him back." I got six bajillion questions about my water changes, but that's just collecting information to make sure I'm treating correctly. On other sites, I heard all the crap comments I posted above.
So all in all, I think this is the best betta forum out there. At least to the best of my knowledge.
Not so on other sites.