You can read the news without logging in. And since Laszlo has already logged in to the forum, it means that he was pursuing other goals. I can assume that his goal was to write a PM to one of the acquaintances with whom he communicated on the forum many years ago and he has no other way to communicate with them.
He can read without login or with login, and does he mind to login his account?
I guess he does not mind about anything happens after his account login, only we as community members are curious about who is behind the account, is it laszlo, and what is purpose of the login.
With laszlo, it's not important and I think that login your account, checking to see whether someone PMed you is natural. Whenever you want it, you can do it, no problems with anyone else.
laszlo can do this, and actually did it while no issues to the community, it's just some people have curiosity about what's going on and what's purpose.