I think the reviewing system is on point. It could be better of course, but I actually prefer that reviews do not get better positions depending on likes or whatever. This is a community and "liked" users would automatically get more visibility. This is not a popularity contest. It cannot work as in Steam.
People just expect the reviewing system to be this homogeneous system that works identically for all kind of games and it is not like that. Similar to how people treat reviews in other media like Amazon or eBay.
Some of my takes about the reviewing system.
1. New accounts
Many people make accounts explicitly to review a title they like, or their first message is a review. That's nothing new. Do people really expect the majority of users here to be some kind of porn critics ? This site is full of lurkers as it should be. I lurked this site for a very long time before I decided to develop my own thing. I have that account still and I never posted a message.
One guy in my threads made a new account only to help me with the UX of my VN. He created a small VN example with the different examples of how I could improve it. Is that a bot ? People create accounts here to download games, not to interact with the community. When they want to interact many times they need new accounts as the first one is tight to an email or a name they would rather prefer not being public.
2. Has potential, shows bla bla, doesn't talk about the game
Just ignore them. These reviews are useless. If the majority of reviews are like this jump ship. Reviewers are taking the time to review something they like and it should show in the review itself.
Believe it or not reviews are a great way of finding the "best" new games. You can sort new games and those with lots of views, likes and reviews are likely worth playing (inspect the reviews first just in case it is full of "potential crap"). Those w/o or very bad are likely not. I did this for a very long time and in very few exceptions I got disappointed.
For older and more established games reviews are useless. Do not even weight sort. Just sort by clicks and likes.
For "average popular" projects it gets tricky, but weighted usually works quite well in my case. I can find most of my preferred games by kink filtering search + sort by weight in the top pages.
3. Only talks about the kinks
These are porn games and kinks are very important. I don't see any issue in that.
--
So, all in all I like the review system given how I use it. It usually doesn't disappoint me and I find everything I am looking for based on the different reviewing system this community provides (likes, views, weighted).