I got a 1 day mute for advertising sythe once, it kind of sucked because I had to talk to somebody over RS chat to verify who I was and get into their merch clan like 5 minutes after I got muted.
i got banned for giving away a lvl 122 f2p account for free back in the day. i was gonna quit so i had a huge fally party room drop with 20+ full sets of rune and 1 set of each god armour (zammy, Guthix, Sara) and like 3 of each rune weapon and a crap ton of runes and cash. after the party the people that i gathered up to start the party came with me to the lower south eastern part of fally and i said the first person to bring me a burned salman gets my account. this was before the ge so it was funny cuz people were goin crazy to find the salman let alone burned salman but someone somehow got one and i gave them the account and all the info. and he ladder told me on his account that the account i gave him was perm banned for "Real World Trading". i laughed my ass off cuz i was just chillin in lumby on a noob account when he told me. jagex is so dumb