short answer: yes.

long answer.
usually when you receive a token (specially when receiving it for free) it is best to sell it right away because there are hundreds, sometimes more of others receiving the same thing as you and THEY will dump and their dump means a price drop which you don't want to be buried under.
but if you have already missed the chance to dump and got buried under the load then it may not be worth selling anymore ONLY if it is a small amount. otherwise you should sell because there is always more dump where that came from.