[ASTalumna06]

I never said "ask a professor for a name and then write that person a letter extending them a bid".

Obviously this process is used to tell a PNM about your organization and to get them to attend recruitment events. It's the same thing as if some random person just showed up at an event. At least this way you're contacting a good number of people that you don't know and may never have gotten a chance to talk to. If someone shows up at your recruitment event after reading a letter about an organization that's involved in academics, philanthropy and rituals, and they go there looking for something else (like alcohol and getting laid), then they're incredibly stupid, you'll probably be able to pick them out immediately, and then get rid of them.