But all indications point to the strong assumption that all these harassers and slow players are not players with a subscription.
I can verify that user Ickedettewa does have a subscription, and is still harassing and slow-playing.
I am currently in a game against him (game #31397548), and this game uses cards for which I do not have a subscription. Therefore Ickedettewa has a subscription.
He has a rating of 50.42, which indicates he has put some amount of time and effort into that account.
And he is harassing in both German and English, while not playing at all and wasting time.
Note that this is the 2nd game in a row I played against him. The first game he played normally, and I won. Then the second game he started trash-talking and wasting time.