I have to agree. In the past, I may not have. I may have said something like 'well if your going to post in a public forum...' but not anymore. I have had a few threads (one about a copperband recently) where I even asked from the beginning that it stay on topic and not become a debate but of course two individuals out of the dozens that responded had to make it a debate and then an argument. I asked repeatedly for the thread to stay on topic but one individual insisted on taking it on a ridiculous, non constructive tangent that really frustrated me. The topic and idea was lost on one person who ruined it for everyone. The thread was closed and the discussion ended. That person could have so easily started a new thread as you have done here

instead of continuing on in mine.
So I agree...why post? Im guilty of this in the past...I have offered advice or disagreed with someones tank when all they were doing was trying to post pictures. But never in a negative way like the bleach comment--jeez that was the harshest comment I have ever heard on here. Not mention, the tank is BEAUTIFUL and well cared for.
I think unless something is terribly wrong with what your seeing or hearing (and a tang in a 90G is not terribly wrong) then you need to respect the persons wishes/intentions and just enjoy the thread or move on to the next one.
Its funny how easy it is for people to say these kinds of things hiding behind their keyboard. I would love to see if they would have the balls to say these things to peoples face--I bet not. I bet he says its a nice tank.