It took a while, but interesting and informative posts from @BeckyAMumsnet which have explained the process and thinking in ways I hadn't been aware of.
I worry about reporting too frequently, because I'm sure I've read somewhere that posters have been banned for making too many reports, so i tend to only report spam now
I'm not a fan of (any of) the royals, but I've seen posts about a certain ex royal which are disgusting, and i do believe her colour has a lot to do with that