My skills are alright, nothing too crazy. I've had messages that were more spammy/scammy, but the volume was not crazy high, they were usually fairly obvious, and I resolved by simply ignoring them. I would say that the random chance of getting an interesting job offer, however small, is probably worth it for most professionals.

However, one thing I haven't mentioned is that I am based in Europe. My small sample size of people reaching out to me is showing that US contacts are usually less serious (e.g. ghosting). Maybe the US experience is so much worse overall due to this?