Block All Variations of a Google Address
Google lets you put any number of periods in your gmail address, and it ignores all of them when receiving mail for you.
Try it; it's fun!
Spammers have taken advantage of this, unfortunately, to spam more and more easily.
If you see a Gmail address with about as many periods as letters, it is probably a spammer. If that address turns up twice, differing only by the number or placement of periods, it is pretty certainly a spammer.
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Block user on a per-user basis? Surprised that I can't seem to find any projects for this
There are modules and projects to allow users to give access to various pieces of content, or to create buddylists.
There do not seem to be any solutions for allowing users to place other users who offend them on a "blocked" list.
What would be really nice is a way for users to add people to a blocked list, so that modules could be configured to, for instance:
- prevent users from sending private messages to people who have blocked them
- prevent users from seeing profiles or nodeprofiles of people who have blocked them
