It means you want to send me a friend invite, or acquire some information about me, or perhaps you want to ask me something.

This will spare both mine and your time:

0: Chances are that I am not interested in your opinion, as well as the whole fact of your existence, especially if I do not know you.
1: I play for my personal enjoyment and pleasure. If you do not like this, then it is not my problem.
2: I do not approve of friend invites by people with empty / hidden profiles for obvious reasons.
3: I do not have any intention of talking with inadequate persons, pre-pubescent dum-dum's, Social Justice Warriors, Trolls and any other non-intellectual people. Wasting my time on such an activity is impractical and below me.
4: It is my choice and privilege to play any games that I want to, regardless of their reputation and/or status. If you cannot understand something as simple as this, then we have nothing to talk about.
5: Inadequate people regardless of their age, gender, nationality, religion and tastes can ♥♥♥♥ off and naturally, I do not care what any of these people think about me.
6: I am not interested in trading items. I do not giveaway items to random people. Do not add me if this is your intent.
7: Do you think that I have insulted, mistreated or otherwise violated your rights? See Paragraph 5.
8: If you see that I am in-game, it does not mean that I am indeed engaged in the gameplay. I can be farming cards or simply be away, with my game turned on.

I try my best to treat everyone fair and square. If you are a fair, mature and most importantly - adequate - player, then we can find a common interest.