I have an iPhone 5, on safari, (mobile maybe) not sure "style"? I can be on handguns and click on a particular gun it'll log out. It will randomly log me out on other times I click like classifieds etc. haven't done any recent updates so not sure what iOS I'm running
This is basically what I experience, except I'm on Android. Anyway it's better than it was. It's 3 or 4 times a day instead of 3 or 4 an hour now.