Just hold, wait few weeks or months, wait for airdrop to be finished and all development is done, the price will bounce back.
Selling now only means you lost 10 x gains.
I think the people with big bag of deep onions can afford sold a part of their bag, especially when onions came for free by airdrop.
Still if you compare the price currently and in end of December, beginning of Januar it makes not much sense. I mean sure, if you don't believe that the price will go up again, but we are facing a complete market down, not like just DeepOnion went down. Well, those people who bought it cheap will be happy sooner or later.