(Lol. I was just musing today that it's scary that Twitter is still operational minus 90% of its workforce. But I guess operational is relative when this kind of thing happens now vs never in the history of Twitter. Or at least not in the last 4 years, which is the period I've been active in.)
Most of the time when I like something the heart animates in, and then (ostensibly when the network fetch round-trips) it animates back out and the count goes back to where it started. My tweets also average a solid 7-13 views, so when I was getting 429s back after not posting within 24 hours, I figured the shadow ban was just getting more transparent.
Whether it is or isn't, twitter definitely feels like it's dying from my perspective. My account was created sometime in 2008-2009.
Bad timing given the Nintendo Direct.
EDIT: Tweeting works normally now