New Toluna Forum Offering Points for Surveys but You Can't Cash These In

I just did a quick toluna survey asking me if I'd like to join a new forum called 'listen to your senses' about perfume, fragance and smells. Run by toluna. I said yes and joined and did the introduction profile survey. you get paid points to answer surveys BUT you can not trade these points in for vouchers/paypal like at the main site. Instead you can use these points to enter into prize draws each month and take it on faith that these prize draws do indeed take place. Another words you will be answering surveys for free and hoping that maybe one day your name will be pulled out a hat and £100 prize will be yours. Sounds to me like a way to get people to give their time for free in the hope that might get something back one day. I'm going to delete my profile there. I either get paid or I'm not doing surveys. Just thought I'd mention it incase anyone else is asked to join.