There is a guy who pledged last semester for my business fraternity that was gay. It wasn't an issue, although when the actives talked about the pledges there were some side comments about it and at first we were TRYING to figure out if he really was or not. One day though, during a meeting he just came out and said that he knew there's an issue about gay brothers/sisters who want to come out to their chapter and he said before he could go on any longer and be initiated we must know that he was one of them. I actually applaud him for doing so and our chapter was really accepting about it.
I guess i agree w/ other people, it depends on the general mood of the chapter and the university. i think it owuld be a shame to kick out a sister/brother based on their sexual preference though, because these peeps are more than just friends, you consider them your brother/sister, and you should accept them for what they are as they accept you.