I just use [email protected] for these silly sites which try to force sign-up, or variations therein, e.g. [email protected]

length of access using this method varies but it's usually enough time to cache and consume their precious content

it's impossible to verify a valid email address without sending a verification link. one half measure is to ping for an MX entry on the user-provided domain, but even that isn't bulletproof

if they go to such unnecessary lengths to hide their content then it simply isn't worth viewing. scoff, close tab, forget