It's one thing to play a character of the opposite sex on an mmorpg - we expect that, at least when it comes to men playing women - but a (I'm assuming) cisgender man writing a blog posing as a lesbian seems kind of wrong to me. Do they know what it's like? Do they realize that some girl that hasn't come out yet might have looked up to them and then upon discovering it was a charade, stay in the closet because the thing giving them the courage to come out was a lie? I'm not normally against making one's gender unclear. I know of authors that, as Sarras pointed out, write under psuedonyms that may or may not sound female because it'll garner them more popularity, and have no problem with those - but that's lying by omission, whereas these men are deliberately deceiving their readers.
