You need to decide if you need the RSS or not. Here I can suggest nothing. Here people discussed the same question: https://www.quora.com/What-is-RSS-Feeds-and-benifits-of-rss-feeds-in-seo

You can read it and decide to use it or not. If you want to disable it read this support topic: https://wpforo.com/community/how-to-and-troubleshooting-2/disable-rss-feeds/#post-15880

I sort of understanding it now (theorically but not completely in a "practical way" hahahaha)

Basically, and I know this is not the type of questions you are here to answer to :), in a like "familiar type of foro like mine" where I only want things "internally", the best I could do I suppose is like I have done, turn that option off, correct?

Or can you see anything good I could take advantage of from this feature and that perhaps its scaping to me eye at a first and quick sight?

Thanks and if you are to ignore this question I would of course more than understand it lol 

https://mundopiano.es

This is RSS Feature and it's working correctly.

Please read this article to get more info:

https://www.bloggingbasics101.com/what-is-rss/

If you want to disable the RSS Feed, you'll just need to disable the option from Dashboard > Forums > Settings > Features admin page. 

*It sends me there regardless if I use slug "community" or any other slug but what it's for sure it's that the displayed text make reference to slug "community"

I will not like to get it wrong right at the very start. Thanks :)

What this two things "foros" and "temas" are supposed to be for? (see attached image)

First I have to explain that the very first thing I did was changing the slug of the foro from "community" to its word in spanish "foro"

Therefore it was normal that after pressing on the above said words, they would not work as they supposed to find community...

So I changed the slug back in the backend and now its called community, but even so when this links are pressd they take me to nowhere. Just to a page where it says: