One possible solution to this is to have all the monster analysis also on the forum, where people can translate the page to get it in their required language. Some game terminology will not translate well, but hopefully they will be possible to understand.
I intended to do this but it’s a very time-consuming task. You can see the thread where I was doing this here: KD's Monster Analysis (also in-game)
That thread was the original one I wrote monster analysis, before it went into the game. So it has some outdated analysis from long ago. I figured out the way I wanted it structured in the first few posts and to add the little monster image with the analysis, but didn’t go more than the first bit.
Would this be a good solution for Spanish and Welsh players? If so, I can finish off that thread at some point.