Nothing spells spambot to me like seeing a login name of the form "r.a.n.d.a.l.l.h.y.d.e@somesite.com". I immediately delete such registration requests. If you have a real login name of this form, be sure to create a login name that eliminates most (if not all) of the periods, e.g., "randall.hyde"
Cheers,
Randy Hyde