You've definitely picked up a malware program, somewhere along the line. No reason for the site to be booting you off, so there's no reason to blame the site for your own problems.

Could be "what you are using" to access the internet or this site, too. Phones, tablets, computers all have different reasons behind their failures. What operating system you're using could also be the problem, as some are more prone to virus/malware attacks than others.

Besides running a good anti-virus program (like Avast), having a built-in firewall, and keeping them updated ... for computer users, I suggest using CCleaner, Malwarebytes, and SuperAntiSpyware programs in their free versions. If you check CNET.com, you'll find three of these programs are in the top 10 free downloads list (Avast - CCleaner - Malwarebytes).

I never log out of this site, and I've never had the same problem you are having (or on any other site, for that matter). It really does sound like a virus or malware program is at work.

If you're using a phone ... you may possibly be at the end of your memory capacity (but, that's just a best guess on my part)

... pappy