I think the difference in alumnus/alumna/alumni/alumnae is a very valid thing to post considering how often the words are interchanged.
As an example: a few years ago, one of the girls in charge of invitations for Alumnae Weekend okayed the invitation draft that read "Alumni Weekend" and literally hundreds of invitations were printed incorrectly. When the error was discovered, it ended up costing the chapter extra money to have the invitations printed up correctly. That money could have been saved if the person proofing the invitations had been aware of the difference in "alumnae" and "alumni."
I hope this thread helps to clarify things a little.
I know that I was never taught the difference when I was a pledge and would have been totally in the dark if it wasn't for 3 years of Latin!
