Is it okay that someone stop their rheumatoid arthritis medication?

Depends on symptoms: If the disease goes into remission it may be possible to stop medication this is something to discuss with your rheumatologist. If the disease is still active it may harmful to the joints and frankly dangerous to stop your medications abruptly.

Under supervision: Reduction or cessation of meds requires supervision to assure any associated flare is recognized early and properly addressed.