This one is just slightly shorter:A limey news org reports is the longest they've seen LGBTIQCAPGNGFNBA and laments that it's making fags a laughing stock. The typical long acronym I usually see is LGBTQQIP2SAA. It will keep getting added to as fads rise and fall. The genie is out of the bottle and I don't see any realistic way Western society can stuff it back in.
There's also LGBTTQQFAGPBDSM (Lesbian, Gay, Bisexual, Transgender, Transsexual, Queer, Questioning, Flexual, Asexual, Genderfuck, Polyamourous, Bondage/Disciple, Dominance/Submission, Sadism/Masochism )