The Stack Exchange Network frowns on greetings and taglines in posts. There were mixed reactions to this before we moved to the network. Should MathOverflow tolerate greetings or not? Is it appropriate to edit greetings out along with another edit?
They should stay, as they add to the collegiality of the site.
Editing them off accomplishes little beyond depersonalizing posts and cluttering the front page.
I believe that greetings and thanks are forms of politeness and that removing them would appear impolite.
Thank you very much for your time.
The general Stack Exchange norm, by which you may or may not choose to abide here, is to remove such things only if you have reason to edit the post anyway. Edits which just remove greetings, and do nothing else, are frowned upon.
I would prefer the site without greetings and taglines. I would especially like to remove signatures with inserted "middle names", since I find them distracting and annoying.
MathOverflow states that the behavior expected of users is: "do not use signature, taglines, or greetings" (https://mathoverflow.net/help/behavior). This is StackExchange general policy -- let's respect it.