The question How to hide the welcome back message on Stack Exchange? was asked because I assumed modifying a website was perfectly suited Web Applications (Stack Exchange network is a subset of the internet). This assumption isn't explicitly explained in the stack-exchange tag:
Questions about Stack Exchange in general belong at Meta Stack Exchange. Questions about a specific Stack Exchange site belong on that site's Meta.
That understanding is further strengthened (though not explicitly confirmed) in What topics can I ask about here?:
Features of browsers which are directly related to the use of a web application (Greasemonkey scripts for a web application, etc.)
If anything, I suggest that we should emphasize this ban in the tag:
This applies to any kind of question. We don't want to play logic game here.
What do you think?
The question is reasked here. The comment section of the original question is below: