I have noticed lots of duplicate posts and just did one myself.  Response time is so slow one eventually hits submit a second time and later voila! there is the post!
 Don't ever pray for patience, you get too many chances to practice.
B

to hit that "send button" a second time.

TER is still digging the tulip bulbs out of the hard drive and things are slow.

Just hit it once, then switch over to a porn site.  By the time you're done with it, your message will have been posted.

I know I only clicked once on the post button yesterday as they were having server problems and it posted the message 6 times!

Am I that quick? Or are you that slow?