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- Feeling left out at some point in your life.

- Feeling bad.
- From the February 25, 2016 Vimeo Newsletter:
"We’ve all felt left out at some point in our lives. And we all know it feels bad. Vimeo wants to combat that playground PTSD: for over a decade, we’ve been building a safe haven for creators to do their thing, in whatever weird yet respectful way they want. ..."
We at Vimeo throw around the term playground PTSD, and equate a serious medical illness affecting hundreds of thousands of people with feeling bad from not being included in children's games!
by coloradsin August 29, 2016
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