My belief in open community costs me a lot in sms-es (how do you write the plural to sms?). Whenever I decide to organise a movie watching (or similar event) I send out masses of sms. I always have the decision of deciding who to invite or who not to. I can usually tell the people who will come and who won't but I think it's good to invite anyone. Sometimes people surprise you. There are some people that you wonder if you should invite, or if perhaps you aren't good enough friends with them to invite them to go out with you. In the end I usually end up inviting them because I'd rather offend someone for being too inclusive than offend someone for being too exclusive.