Just for the record: I agree communism sucks. By "communists", I mean revolutionary Marxists and/or Leninists, Stalinists, Maoists ... all the supporters of "dictatorship of the proletariat" same as or similar to what has been implemented in the past.
Dogmatic Marxism is simply disproven by history, as I understand it: Marx' social analysis of 19th century European capitalism simply doesn't fit anymore for modern Western societies. There is no such thing as a "working class" anymore, due to very high social mobility (unlike in 19th century Europe, the rule "born poor, always poor" doesn't apply anymore, because there are many ways to climb the social ladder today). Then, the social structure does no longer resemble a "pyramid" with very few on top and the huge masses at the bottom, but we have more of an "egg" (huge middle class, few on top and bottom). Republican/democratic government has sufficiently answered the "social question" of the 19th century, by improving political participation, social mobility, labor protection laws and social security nets -- and capitalism, within the frame of democratic government, has done much more for the material welfare of the masses than socialism/communism of any kind ever has. And the 20th century has proven that empoverished peoples will not necessarily turn to communism, as Marx predicted, but to other extreme ideologies as well, proving that the mind shapes reality a little more than Marx thought.
So claiming to be a Marxist "communist" today is rather pointless. Much like claiming to be a Whig or a supporter of the Confederacy -- the social context in which this label was initially conceived and made some sense, simply doesn't exist anymore.
That said, not everybody who is concerned about worker rights, the growing gap between rich and poor, equality of opportunities or existing problems with the current capitalist order is a "communist" or "socialist". There are many good points to be made and many legitimate concerns, and as long as the people advance these concerns by using the political process instead of violence or oppression, they are entitled to do so, IMO.