There has definitely been a sea change in attitudes, throughout society in general. My impression is that there is a fair bit of residual bias within people, but that it is no longer acceptable to voice it, or even to be seen not to rail against it. A good illustration of this is sickipedia. A quick browse through the jokes posted there would get most of the posters on this thread up in arms and ready to march on the sites owners. Who, incidentally, happen to be jewish, a minority group who are the target of many jokes on there. Jokes are never removed on grounds of taste, only if they are deemed unfunny by the online community, or potentially damaging to the site owners in a legal sense.