I would not be surprised to learn that lefty software people that worked for twitter put millions of lines of code into the algorithm with hard-coded filters to block thousands of specific people.

I don't know what it is, but every piece of SW I've ever had to touch that was previously developed by left leaning developers has always been the worst pile of steaming poo spaghetti code. They can't write simple code to do a simple task. Half the time when they see my code, I've been told it's all wrong. Does it work? - yes. Is it simple? - yes. What's wrong with it? - long philosophical argument about coding styles, cross functional platforms, don't like it, etc, - but not one word of why.

I write A + B = C. Done

They write a half dozen or more cross linked functions and subroutines that check the scope of each variable, bit shift the numbers to drop unwanted significant digits (because you have to have a check for that), maybe convert types because the function that is allowed to do the addition only accepts a specific type like a string that requires it's own conversion to actually perform the addition, etc. And if you think you're going to get away with writing A + B = C, think again - they've already written algorithms to scrub the code looking for code like that outside of their approved function to perform that task.

You might thing I'm joking. I wish I was. It wasn't specifically A + b = C, because that would be too obvious, but it was enough other relatively simple tasks to drive a guy mad.