[dspillett]

I tend to think similarly, but there are many ways to generate a temporary email address.

It isn't the case here but site/app makings take note: this is why I never "sign-in using <social media account or some such>" so if that is the only option you offer I won't be trying your service/app/other.

For email I have a sub-domain set as catch-all and give out addresses in that to new sites. If an address starts getting junk I can just block it. If the sub-domain as a whole gets deluged then I kill it and start another (any site/app/other I continue using gets given an address on my main domain so I'd lose nothing, though I've never actually had to do that). Because it is a sub-domain it gets skipped by junk mailers guessing [e-mail] addresses. Some sites have bad email address checking that rejects [e-mail] (I assume their regexp doesn't like the extra dot in the server name) but if someone gets that wrong I don't trust the code in the rest of their app so I move on.

[staticelf]

Then it comes down to wether you are interested enough to go through and create a temporary email to check it out. I was not that interested and rarely is.

[staffordrj]

If you're on Chrome it's as easy as right clicking the email field. The extension's called Easy disposable email address.

[dspillett]

The catch-all means I don't have to create an address - just make one up on the fly. Everything to that sub-sub-domain (aside from those addresses blocked because they've attracted junk mail) are forwarded on to one of my "real" accounts.

[kristiandupont]

mailinator takes care of that (use a random address @mailinator.com and go check it afterwards). Of course, some sites block it but most do not.