It's a fairly new service, therefore untested, but it has pretty good reviews. Hence I hope it can be trusted and you guys will really get your gift cards. If it is a success, I will consider buying some Turbine Points codes and supply these as a reward. Time will show :)
Please let me know any feedback or questions. There is little info available, but I will try to find out how much I can from PunchTab's customer support.
So, let's comment, tweet, like and recommend! :)
Just a note: In case anybody would like to farm point with obvious spam (commenting many times isn't considered spam), I will opt him/her out of the loyalty program and delete the spams.