I think context in regards to this "This game isn't for you" issue.
Understanding context is a tricky thing to say the least, when people are communicating with pure text. Simply, it is not our natural way of communicating, and as such, the large chunk of the way in which we humans comprehend communication, i.e body language, is just missing on here.
Emotiocons and such are helpful, when applied properly, with trying to claw back some of the context. But in the end, no matter how well a piece of writing is structured, it comes down to peoples own experience with the language.
Now. All of that being said;
I am pretty sure I have perhaps at least once (if not here, somewhere) stated to somebody that "Perhaps this isn't the place for you".
For myself, saying this would not at all have been in any sort of hostile context. It is simply stating what I believe to be true. Not everywhere is the right place for everyone.
I do think by its simple wording that
"Maybe this isn't the right place for you" is obviously different then saying
"Go away, nobody wants you here."
Of course somebody can use the former statement in a more passive/aggressive tone; That is very hard to gather on a forum constructed purely of text and the (hopefully) properly attributed emotiocon.
Regardless, of making these kinds of statements to somebody, people will make up their own minds given the right time. Such is the way with everything in life.
An example in my own life, was when I signed upto the Gym. The guy who did my induction basically told me in so many words that "This might not be the place for you".
I figured that out a month later. Hindsight being 20/20, if I had listened to him then, I could have saved myself $100
He didn't just take my money, and then tell me that they didn't want me there.
Context. 