The problem is that your definition of "crap" is probably a bit different from others. Everyone probably has a slightly different definition. Also, your feed is probably mostly stuff that was posted on X first and replicated over somehow. Network effect is real.

That being said, there are clearly multiple active automated influence operations happening on X all the time. If Elon wants X to stick around, it would be in his interest to put a stop to those. The default feed is full of posts from those bots; that's also a big problem they (X) needs to fix.