I don't know why, but I had the idea that for security reasons it is better to log out and log in. Can anyone confirm if there is no problem with this?
The only problem that comes to my mind is that it can be a bad idea if you share a device with someone. Even if this is not the case, I would never choose the
"always stay logged in" option, because it only takes me about 15-20 seconds for this process (unless the captcha doesn't have a bad day).
If you do not share your device, then I don't think it can be any security risk to keep the account login indefinitely. I do this and have never had any issues. Let us know how this can be a potential risk?
I don't experience any issues with the captcha at bitcointalk but usually, when my internet is slow, the captcha keeps on failing. This can be another reason that captcha works a bit late sometimes.