What they forget is that the most important thing about business is customer service. If you have a bunch of unhappy customers you don't stay in business very long.
Actually you're the one missing the point. They are delisting coins with low volume and low support to clean up the house for the rest of them. I see nothing wrong with that, I'd rather have the devs improving the QoS than spending half of their time fixing the 808 wallet.
Take one look at the official thread and you will see that they are not cleaning house, but cleaning up by denying users to withdraw coins who have small balances, because of some arbitrarily selected price cap. Denying 5000 users out of 5500 the ability to remove coins from the site is not gonna make for a lot of happy customers. multiply by 70 coins and you see the magnitude of the problem they are facing.
The users who will not be able to withdraw will be compensated with POSW of similar value. If they support Poswallet, they will be happy. If they don't, they will sell the POSW and buy back whatever shitcoin they had. So the only problem they are facing is taking care of 70 wallets that are just a waste of time and money.
So goodbye and good luck to you, loyal poswallet user who can't accept a loss of 100 gaycoins to support a service you supposedly like, I'm looking forward to the devs working on an improved design and an unique code for the coin.