On the internet yeah - but irl I've never been insulted for saying I'm agnostic by an atheist, while I've been told I'm a dirty heathen and I'll go to hell by Christians/Muslims.. I think a lot of the vile from atheists come from their negative experiences with religious people - being scolded for asking questions etc.
But I think that about (totally made up number) 1-10% of atheist and Christians are hardcore idiots - I however have more respect for the atheist in that grouping as they tend to have thought more, which is not to say that they have thought a lot, about why they have taken their particular stance than those Christians.