I read a lot of those posts & didn't see anything about running Mawarebytes. I use it about once a month & delete anything it finds, I'm also running a internet security suite.
You can get malware from a knitting site, I know that coz a while ago my wife managed to get a real good one from a crochet site & Malwarebyte got rid of it
The link below if for the free version
https://www.malwarebytes.org/dl-confirm/