Why ELO is hidden in Arena matches?

[Ducherko]

I don’t understand.
This is why…

1. Games on the Arena still affects my ELO, so I am interested in my opponent ELO naturally.

2. I can’t pretty easily find my opponent ELO in his/her/theirs profile, so why make it harder (and force me to make unnecessary and “heavy” requests to the server)?

Can anyone explain it to me?

[Meeplelowda]

I don’t understand.
This is why…

1. Games on the Arena still affects my ELO, so I am interested in my opponent ELO naturally.

2. I can’t pretty easily find my opponent ELO in his/her/theirs profile, so why make it harder (and force me to make unnecessary and “heavy” requests to the server)?

Can anyone explain it to me?

Are you suggesting that ELO should be shown for Arena and want this to be added to the site? If so, you may have overlooked this: Suggestions (read this first)

But it seems like in each of your series of posts on related topics you aren't proposing a solution to a problem, but instead want to ask questions about and discuss some aspect of the site. In which case the Discussions sub-forum is what you're looking for.