This is a review service, so they should do their own research and not rely on the opinions of others.
Look at what is written on the main post as quoted below:
If you have any suggestions or input regarding our lists - please drop it below!
They may have done their own researches and they need opinions/suggestion from others especially from those who have real experiences on the site. Opinion of others is OK as long as it is valid, and OP is also free to decide whether he/she want to use other's opinions or not.