There's restrictions to what kinds of names we players can have. The ones you picked were deemed not ok, so Jagex removed them (which they have all the right to do, as outlined in their Terms & Conditions - section 6).
The 3 listed possibly haven't been reported to Jagex, so they've not been seen to get removed. If they get reported, it would be removed for them too.
Its best to just pick an appropriate name, else you can risk losing the ability to change a display name for a year with an appropriate name selected for you.
Can I turn in a paper without citing all sources?
"No."[1]
1. William Shakespeare,
Hamlet
, Act III, Scene 1, line 96.
02-Jul-2023 22:42:02