That won't work well for a lot of corporate users. If someone uses a load balancer for outgoing posts then every post will come from an essentially random ID in some range.

Instead lookup the last post on the user name. That should work much better for accidents (if not for spams).

In reply to RE (tilly) 2: Don't allow duplicate posts with the same title by tilly
in thread Don't allow duplicate posts with the same title by princepawn

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