I have to agree. I don't have a problem with rank sitting. At lease with rank sitters, if you want to avoid them or your characters doesn't match up well yet, you can always rank past them. Some characters are going to be badass in the mid ranks and some are going to be badass at hero. There are much worse behaviors in CF than rank sitting.

I have never been much of a rank sitter. But, I do like the mid ranks. They seem to have the most characters and the most opportunity to PK.