If you post an email address, it will be found regardless of how you try to disguise it. Everybody already knows
webmaster@bar.com, or
abuse@bar.com, ...etc. Just avoid posting email ids unless it is absolutely required. given you are at a campus, it will be expected that one student will post another's email-id in some forum, just so that the user gets more spam. If you are running boards and allowing user input, add a filter to remove email ids from general discussion boards.
Interesting. Well there's already e-mail addresses for the Web site already on there. I figure they've already been spammed out. I'll use those instead of my own.