> There's a large population of users who want to use Unicode characters as cheap visual tricks, to make the titles or comments stand out more. Also as a means

> There's a large population of users who want to use Unicode characters as cheap visual tricks, to make the titles or comments stand out more. Also as a means of trying to fool keyword-based anti-spam filters. I've seen entire words spelled out in alternate Unicode characters that look like the characters of the actual word, but are not the actual letters they look like visually. Computers, being inherently "dumb machines" totally overlook such words if they're not actively blocked at some level by the filter (easy way is to block the actual characters these spammers use, but of course this can then cause problems for those who actually use those characters properly; Yay, spammers. Ruining the Internet for everyone).