yes the BTC community is hostile, but you cannot blame them/us. look at all the scams that have taken place since bitcoin started or before that even.
That is a bullshit reason. So if you worked at convenience store would you hold every customer in contempt and be dickish to them because of the possibility that they could be robbers or shop lifters?
I think any convenience store would hold a random stranger in contempt for walking in and saying "if you give me 10 bucks now, I'll give you 20 bucks next week."