Monogamy (or supposed lack thereof) among gay men is a hot topic. This is a perfect example of the politically correct crowd's ability to turn its immutable dogmas on a dime, depending on what it wants to prove and to whom.
People in our community used to see monogamy as patriarchal and heteronormative, and consequently as very bad. Then, the politically correct Pat Robertson clones saw it as a convenient stick with which to beat gay men. The latter group did not cite any new information that required a shift in position; instead, the perceived enemy had changed.
Another issue is that commenters on the subject have tried to extrapolate from a subset of gay men in San Francisco to the LGBT community elsewhere. As I have said before, it doesn't work that way.