Most of us are trader, and all of traders wants profit. No more long term holding, people will sell their cryptocurrency if they get chance to gain profit in form of fiat. They will buy those cryptocurrencies again after the price fall.
Yes you're right.. for current situation may be we can't expect to gain a lot of profit because it really difficult to be realize. We should sell whenever we get chance to sell eventhough we just can earn 2-3% profit. We should be realistic because we never know what will happen in the future.