I had used this site for a few months now and i mostly use tags to find new manga. The only thing that bothers me that there isnt any "exclude manga with this tag" filter. These NTR really kill my interest in any romantic moment.

You can exclude whatever category tags you want (netorare included) when you're doing an advanced search by entering said tag as a negative, as in "-netorare" in the little "categories/tags" box. You can enter multiple tags as well in whatever combination (search for/exclude from search, I'm not sure exactly how many, sorry) just remember to do it one per line.

Oh i didnt know that. Thanks