Two readers see The Coast's failure to lift a finger in defense of its reader-posters not as an unwelcome blow to free expression but as an overdue comeuppance for the well-known excesses of anonymous Internet posting. Bill Turpin writes: The Coast's greatest failure to its readers was in allowing anonymous posts in the first place. It's The Coast, not Samizdat, and this is Canada, not the former Soviet Union. You're free to write what you want in this country, subject to defamation laws which, while imperfect, are not odious. There is no need to hide behind an alias. But when you do,...