What makes you think large social media platforms don't have these exact problems? Because they definitely do.

This software being open source will hopefully make it more secure one day than even things like twitter. This is because everyone can see and inspect the source code and try to find vulnerabilities. When they are fixed then (hopefully) all of the instances get updated. It's what helps make Linux generally more secure than Windows.

It seems to me you don't see the value in open source platforms like this. If this is true then fair enough. Just don't come crying to me when reddit does something you don't like.