If this were to become a reality, i would hope that it would be hosted on a separate virtual server. Someone might be able to do damage to the internals of PM if they were on the same machine. Also, i don't think that a telnet account would be an option since it would need to be a pretty massive set of servers to hold so many users which might not pay off since someone would need to hire a sysadmin.
If I may humbly suggest using Apache's mod_rewrite (brutal huh?) or mod_redirect, to link www.perlmonks.org/BigJoe to his home node, which may actually contain resume information and links to posted code or offsite code. No need to create UNIX users since we shouldn't have such the massive privilege anyway. Perlmonks would die since folks would be ytalking right and left and code could be saved online in files for everyone to see instead of via this nice GUI. I would consider that a mistake.
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