People are flying here every now and then, but 'regular' is probably a too big word.
The condition of the place has become worse over the last two years, the original plateau within the fences has lost its grass over the last two years, so a lot of sand has blown away in some storms. The flat area within the fences has become a huge pit. Now it's better to walk north until just past the pit and fly just north of the fence (it's not far). You can land your gliders north of the fence, but there are some more bushes with thornes there so you'll have to be more precise in the landing than in the past. Lift is still good though, the slope itself has not lost height.
The should also be a nice spot at Wijk aan Zee, probably a bit closer from Purmerend. I have not been there myself, it should be somewhere close to a hotel?