Not due to any particular preference of platform, but more from some of the ill-informed and occasionally borderline (or over the line) offensive things i have read on both forums by particular people i find i have cause to be concerned as to their true motivations... i think that's a perfectly rational response, even taking into account the fact that people often talk in a more unguarded way online than they would in reality. Personally, it just leaves me feeling uncomfortable and when there are many things to support and give time or donations to, i think it fair to say that often decisions to support or not are swayed by lots of factors...