Are they cheaters or? What team arena saves as your defense? The n1 or the one in home menu?
If I remember correctly I remember some people mentioning that in KR version some people were using a meme team as defense to help people climb easier ( or something along these lines) I'm pretty sure they only have to switch team when they back out of devil rumble and it registers as what we are seeing above.
Maybe they were plat 4 or 5 couple weeks ago, and now they start to play rumble again.
You get demoted for not fighting so no
Occasionally press next team when they want to leave this page?