The second link to youtube if you open that in the discriptiom of the video there is a link to his site which is all in English. There he also explains a bit what he is doind and what he is letting is see. Maybe that helps
He is collector himself of g1 ponies btw before starting with this pony brushing thing that is what he told in the second video.

I took a look at the link to his website which is in English, and if I'm allowed to post the link, here it is for people to see:
http://www.dennisverbeke.com/
So in his performance, he was encouraging people to ADOPT his ponies??!!  Man, I wish I knew about his performance!  (Even though it was on a different continent!)  I would have loved to ADOPT his ponies!    I mean, I saw a Munchy in there!  (And I need a Munchy!)

*edit* Adding a quote from his website: "I had to contain myself not to check up on the percentage every hour! New sponsors saw the necessity to make a contribution, and people who already made a donation decided they wanted to adopt another pony. Eventually the project achieved 106% which made me jump out of my seat."

This shows that he must be coming to realize just how popular it is to collect vintage MLP! 

Thanks, everyone! 

Diamond--I haven't come to the Arena for a number of days (actually, I really only occasionally lurk these days...), and only NOW I notice your signature!    You want me to go crazy with you??