Also worth noting who posts it. Oda.Krell is one thing--a poster with a loooooong record of adding value to the community., J1mb0 is something else entirely.
Thanks for the kind words.
In the case of the quote I posted, note that user Wachtwoord is an extremely valuable member of the BTC community. His style of posting was abrasive, sure, but he asked absolutely valid questions imo. Deleting such contributions would be a major mistake, and would make sure I personally wouldn't want to post in the thread anymore - chilling effect, and such.
EDIT: I should perhaps clarify, I picked the "anonymous or not" quote not because I wanted to start that particular discussion again, but because I wanted to use it to discuss (through an example) what is legitimate criticism in this thread, and what is trolling/FUD.