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^^^ I second this. As someone who's admittedly a little too ok with sharing their F/Os, I think clumping all people who are nonsharing and demonizing them is not the way to go here. Being a nonsharer does not inherently make you bad or annoying, you are allowed to feel pain and discomfort over sharing. As long as you do not actively harrass and attack other users you are allowed to feel how you feel, express yourselves, and vent about your emotions.
"Well, why can't I vent over nonsharers? Aren't I allowed to feel bothered too?" You don't understand, it's more than just "bothered". It's painful. For many, the idea or image of their f/o with someone other than themselves gives them a deep personal pain. Thats why people vent, because of the pain. Does the existence of nonsharers give you a deep personal pain, or is it just annoyance? Either way, consider blocking, moving on, and keep the complaints about them to yourself. It's healthier for everyone involved.
That being said, nonsharers get behind me. I'm ready to take a bullet for y'all โค๏ธ๐งก๐๐๐๐
NONSHARERS TRY NOT TO BE HYPOCRITICAL CHALLENGE, GO!