If someone wants to purchase a coin which has a history of being counterfeited, for example the 1934 wreath crown, with the other two TPG's you can input the number on their website and verify that the coin you are looking at is the coin in question, and that the data they hold matches. Do the same with CGS and you would now have to pay for that privilege, and whilst I suppose compared against the value of such a coin it may seem like a minor fee, it is nevertheless a fee that people would have to pay out before a purchase.
It seems they have realised that administering the database is more of a burden than they anticipated, and whilst there may need to be adjustments to the way they operate due to this fact, which would be entirely reasonable, it seems that they have only considered their own perspective and not that of the people who use their services, or the dealers that have actively encouraged their services...it all seems very bizarre.