Hmm.. we'll have to look into what specifically is happening when a user removes their profile. In the 3.2 release, we added checking to the authentication plugin to make sure the user wasn't blocked.. which is what I thought happens when a user deletes themselves. However, if there's something specifically going on in JomSocial, we'll have to add some checks for that as well. Either way, our plugin system is robust to let us have specific functionality per profile system (CB, JomSocial, etc), so with a little luck, we can release a revised JomSocial plugin later this week that will account for this.
If you figure out anything else specific to this problem, let us know!