I do, Sid. All the time. I disabled my ad-blocker/anti-tracker but I'm still being knocked off-line with a message to become a Premium Member to not see ads. But, I AM a Premium Member and see ads down the right side of my page and within some posts.
You're not seeing that message when you're logged in though, correct?
You're being logged out by a setting on your computer. It's likely a firewall or ad blocker that is messing with your cookie settings. The site requires a cookie in order to keep you logged in.