@KenJennings. At least for Niche it is connected to a blog. Maybe the others as well. Check at the very bottom. You can’t post other social media article here. Anything that has people commenting on it like Niche. It’s against the rules. I honestly have been flagged several times just not understanding this. Sometimes I post an article quickly without looking since it’s such great advise. You could always copy /paste the article without linking it, might be a solution.
I do sometimes find this frustrating myself but never do it on purpose