No need to grovel in excuse, there's been many opinions on both sides of that debate on this forum in the past - it's a reasonable question. It simply comes down to the fact that, as Richard pointed out for this forum, public anonymous participation have not been detrimental in any real way, whereas disallowing it has. I am not a moderator so I cannot say with any authority what amount of crazy anonymous posts do show up and get moderated out, but I've not seen any debate on that so am expecting the incidence to be fairly low. I myself (and others) have at the start advocated for non-anonymous posting, my main reasoning being that it is such a convenience to be able to discern to whom you are replying, not waste time repeating yourself, etc, but that advantage is outweighed heavily by the utility of not having any sign-up hindrance when getting bug reports in - *la raison d'être*.