I gave up on this sort of thing. Spam filters are good enough nowadays that I don't think I see an increase in spam by having my email address publicly available without obfuscation. (That is, an increase beyond other spam sources, like crappy companies who have my email address for a legitimate purpose, but sell it to third parties.) In general I see less than 1 spam email hit my inbox per day, and that's fine.

Granted, this may depend on email provider and spam filter, so YMMV, but it hasn't been an issue for me.