Strategies to get reviews in the Product Hub after launch

I lauched App Finder on Monday and got some nice comments that would also be fitting as reviews. However none of the commenters wrote a review untuil now. I checked that this is common (many of the other products launched on Monday have no review yet). Is it a good idea to ask the commenters to write a review? Maybe just to copy their comment as review if appropriate? (Of course, this makes no sense if the product is completely new and the people cannot be expected to have used it enough to write a review. In my case, many comments were from people who used App Finder for a longer time already.)