Personally, I would prefer
Discussion
Wouldn't that get easily into spamming? I generate an alias, see the number, then start to spam the others.
Perhaps, but for me to want to use this, the address has to be short and memorable enough for me to be able to remember it and give to someone else verbally with a reasonable expectation that they'll remember it. AAron7@Crustymail.com checks that box but AAron.banister@Crustymail.com doesn't.
Hmmm, and how do you solve this now?
Is it still an alias?