Developer has withdrawn this plugin

It should really be 0 stars. Having wasted time and effort trying to get this plugin working and waited some time for the developer to get back me after submitting their own diagnostics this was the response :

“Unfortunately, the service costs money but in general the wordpress community is difficult to make money in. So we have moved on to other things.
It would be nice if the wordpress community would in general support paid options for the developers.”

In which case why hasn’t the developer withdrawn the free plugin from the WordPress plugins library?

I for one, along with others who have commented, would have paid for the pro version if I could have tried the free version and made sure that it did what it claimed.