That is a tried and true test for any newcomers / refugees / immigrants, be they real-world or virtual online variety. Are they willing to assimilate to ***your *** preexisting culture and norms?  Join your already extant groups?  Be a part of your established rituals? Or do they insist on displacing and replacing all that you are and were with all that they are? The first variety is an earnest migration, where people can share cultures and blend together the best of both.  The second variety is an invasion and should be repelled and defended against with vigor and valor.