This reads like the classic Youtuber whose annoyed their views dropped (this almost always amounts to 'people don't actually like your content as much as you thought').

>We posted to Twitter (now known as X) five to ten times a day in 2018. Those tweets garnered somewhere between 50 and 100 million impressions per month. By 2024, our 2,500 X posts generated around 2 million impressions each month. Last year, our 1,500 posts earned roughly 13 million impressions for the entire year. To put it bluntly, an X post today receives less than 3% of the views a single tweet delivered seven years ago.

It's incredibly unlikely someone at X shoved the EFF in a 'low visibility' bucket. It's much more likely they've simply updated their alogorithms and the EFF doesn't hit some engagement metric.

They're still getting 13 million impressions by simply posting tweets, I really don't understand 'taking a stand' here. Instead of 13 million they'll simply get 0... The opportunity cost in the worst case is a human being copy pasting a tweet, there's plenty of software to schedule posts across platforms though, which would make it essentially free even in user time.

Imo, they had a 'personal stance' motivation, and dug deep for any reason to argue for it.