You’re asking a question that’s already has an answer in the sidebar…

The sidebar only shows a list of charities not a rule that posting about charities is not allowed.

You may not have linked one, but you’re asking for people to do so in the comments. And the mods would be obligated to check if any where a scam. Which they explained they’ve had issues with people posting scam links.

I did not provide any "scam" links in the post. I was only asking what is the best way to support charities financially.

That’s not even getting into how one of the most common ways scamming post is one account asking a question, then an affiliated account answering.

That does not warrant my post to be removed. I was posting the community on a regular basis for weeks before.

I just don’t see what you’re so upset about…

I feel upset because the time I took to make that post is now wasted because the moderator didn't do their due diligence in adding a rule beforehand for everyone to see so we can stop having this discussion. They could've locked the post and said they're going to add a new rule but instead they doubled down on their overhanded tactic and refused to discuss the matter forever when I stated I felt their actions were unfair.