The bad side of bitshares is the delisting from Bittrex. This kind of things are always undermine the trust of investors and the community. Moreover I don't like their business model but it's only my personal opinion.
I agree that the delisting from Bittrex can definitely cause investors to question the validity of the project. However, BTS is still traded on Binance and Polo so it does at least still have a couple of well-known exchanges that support its markets.