The main reason for the limit access to the ROS is part of the business model. By requiring Premium Access membership to read it, Eccie gets a revenue from paying PA members or gets more reviews from members who posts reviews to keep their PA. Many hobby sites have similar arrangements.
Note that donations are no longer posted in the reviews. It is not illegal for consenting adults to have sex. Only if anything of value is exchanged as payment for sexual acts.
So the reviews are just entertaining stories, and we can hope that our experience with the same woman will be similar if we manage to arrange a date with her as well.