Requesting evidence is good behavior. Combining it with a counteraccusation of trolling slides the whole comment into the negative, for me.

Likewise, not only is it an objectionable social move it is also just false. An abuse of language. Following through the reasoning (and also observing that often quoting or linking to copies of deleted comments is also considered trolling) makes the label 'troll' a label that can applied rather indiscriminately to anyone who dissents, regardless of how and why they do it.