So I just spent nearly a half hour writing a thoughtful long post in response to one of the recent threads here.  Hit the POST MESSAGE button and the entire thing disappeared.  WTF?  damn!

This is not a new problem. Your TER login can time out if you take too long without clicking anything.  
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I compose my longer messages in Notepad on my PC 1st. Then I cut and paste them into the TER page.  
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Life is good... (with Notepad  
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The Cat

Especially if I get a phone call right in the middle of composing a post.

 
What I do is anytime I have taken more than a few minutes writing a post I will copy the message before hitting POST MESSAGE and that way if I have timed out all I have lost was the subject line and I can simply paste the body of the post onto a new reply.  

 
Yes, I have lost more than a couple of posts EXACTLY like you did before I started taking precautions. I know just how irritating it can be.

Well darnit Herb, you're cleverer than me and it's annoying so cut that out, lol!

I whined about this problem to my clever wife who suggested exactly the same thing as you.  Guess I should start dong what the smart people do!

Life's a bitch, Sweet, until you take her BCD.  Then she's a whore.  And I love whores.  
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Life is good.
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The Cat