I found out that trading of Cofagrigus online without a nickname in BW was once banned because of Cofagrigus (you know, I highlighted the word to convey the meaning of the reason; the reason is what? You try to guess!). But the ban was later lifted and BW users can now trade Cofagrigus without a nickname.
I got this from a Wikipedia article about the Scunthorpe problem, a problem where spam filters and profanity blocks sometimes block words with substrings that have otherwise offensive meanings.
0 comments