I generate unique email addresses for software registrations, etc, and the one I used to register the ACE HTML editor (and nowhere else) has clearly been sold to a *bunch* of spammers. There is no indication anywhere on their website or in the registration process that this will happen, and no way to opt out. The software isn't bad, but it isn't worth the spamming you get as a result. Avoid this software!
--Help fight spam