I have Twitter, which I open about once every 9 months or so if something interests me. Have Facebook to play Wordscraper and to Save a Cat, which actually motivated me to adopt a cat, thereby saving her life. Wordscraper has gone down the tubes and is now unusable. So, cats are now the only reason I have Facebook.
I think I have LinkedIn but am not sure, don't care. I have aliases for all the social media. Etsy is one arm of a small business I have.
The only social media I give a rat's about is the NY Times, and can't imaging scrounging for attention all over the Internet with no privacy.