One reason which comes to my mind is that fewer people are playing on this platform and hence they do not discuss anything here. Also, Punt needs to have some sort of marketing campaign / Signature campaign in order to attract the gamblers. The competition between the gambling sites is quite high and hence they need to have some budget for marketing purposes.
With what they have now on the site, signature campaign wont really help because there is nothing special on the site.
They need to offer some attractive things to attract players to play, without good offers, any marketing campaign will be useless and it will be just waste of money.
So it is reasonable if there are not many players in this casino although they have been here for over than a year.