Well as all are one in Christ, neither Jew nor Greek nor male nor female, Ithink we can conclude there is neither those who have opposite sex attraction nor same-sex attarction in Christ, therefore no such thing as a gay Christian. We also see from Jesus that to be in Him and He and the Father in us we are so when we obey His commands.
For thsoe here who dont believe everything Jesus taught in the Bible it must be difficult for them to know how to be in Christ, but for those who do a good deal easier.
As to a comfort, well anything tells people what they want to hear can be a comfort, but for thsoe who believe all the Bible, including anyone who has homosexual attraction they can be sure that because of Jesus God loves them and delights in them, just like He delights in those with heterosexual attraction.
When we identify ourselves with who we are in Christ we know we are loved, when we identify ourselves by our sexual desires we are seeing ourselves in sex not Christ. So I would be wary of whether sites like this are merely robbing people of the real love God has for them, no different from anyone else, through Jesus Christ.