I tend to treat twitter as a broadcast platform and largely ignore the replies anyway - but I certainly won't discuss sexism on there. It's ... far too easy for

I tend to treat twitter as a broadcast platform and largely ignore the replies anyway - but I certainly won't discuss sexism on there. It's ... far too easy for topics like that to generate a flash mob; if you don't find "ignore it" to be an acceptable response then leaving seems fair enough - but I'd recommend to anybody on twitter to ignore any replies to controversial statements in any case.