Earlier quoted context omitted.
Actually, I'd like to provide a counter view point because this is really how I view it: but I actually prefer it if you had the "login with FB or Twitter or Google" because to me, I absolute get annoyed by having to sign up for yet another service. Another username, email, password, to remember == annoying for me.
That isn't really so annoying though - use the same username you do everywhere else, use the same password (click supergenpass so it doesn't matter if the site gets hacked) and make your browser remember it. Because there sure as shit isn't any way I will just give some random website my google account - they get a dummy email forward, just like everybody else.
Yes - I also do the dummy email forward. I agree about not giving random sites your google account. So create a dummy google account.