Yes it’s an actual problem I’m experiencing, I have spammers regularly making tens of thousands of accounts per single gmail account with the dot method and a sufficient pool of IPs.
I’m only seeing the dot trick being used, not 100% sure about if the + method works also. Last I checked it was possible to register using email addresses with + characters, so that trick should work too.
For example, this email (not a real email):
constantinehamilton1337x@gmail.com
Can make 16,777,216 unique email addresses using the dot method only and essentially unlimited using the + method. Makes it super efficient for spammers. Domain blacklist isn’t viable seeing it’s gmail.
You can see a generator here (gets laggy over 8k combinations): Redirecting...