Yes, from my ex husband and my current husband's ex. It went on for 4 or 5 years. My ex stalked me, blackmailed me, and made up fake profiles on every social media platform imaginable to bother me. Thankfully, the man is a moron and as such, didn't cover his tracks very well. My now-husband's ex was slightly more clever, but not much.
It's all died down now, for the most part. It's been 10 years. But every once in a while these dumbfucks pop back up for some reason or another. I suppose I'm just that fascinating. My ex will like a post on IG or try to befriend one of my kids on Facebook. The other little creep will leave a comment on this or that under a fake name, but I always know who it is, she has a very odd affectation to her writing and grammar, so...yeah, completely obvious.