I hear what you say and why you feel that way.
My opinion is the complete contrary. When I have had to deal with him on a personal level he has always been completely upfront, helpful and honest.
If you still hold Gulden then my advice would be to get active and do some marketing. For your own gain regardless of your misgivings about certain people. You'll feel better for it I'm sure.
I'll grant that a man can behave differently in different settings.
My point is simple. Whether you like it or not, one giant factor in the success or failure of Gulden, is Rijk the man himself. Why? He has made it mostly about himself.