There are. One is to call you a meals chugging care RuneScape gold, as the OP noted, so that next time you won't consume just to prove you are not a care bare, and they'll be able to kill you before you escape. Sometimes they'll attempt to describe this as"No Honour PKing", which is just one more way to convince you not to eat, not apologize, not use a defense, not attempt to defend yourself in any manner, so they can get a free kill.
Another is to always lobby Mod Pi for the nerfing of the things which enable you to survive and/or escape, like gorajian mushrooms, phoenix necklaces, healing portents, being able to utilize both spike and bladed dive, the Reflect ability, Achto effect etc., which Mod Pi proceeds to nerf like he's told because he's a griefer at heart and desires that the PKing community to believe he's cool.
Mod Pi himself suggested a fix on his own Twitter that leaving the wilderness hands your opponent an triumph, thus meaning nobody could hold you to ransom and the win seller could just be killed quickly, however it was shouted down so quickly from the PKers he had been trying to impress, which he never even took it to the general Runescape population for a suggestion).
Any PvP where you absolutely have to receive a fast KO until cheap RS gold escape/teleport so as to kill them, will of course lead to the behaviour aimed an persuasive opponents not to fight as well as they could. There is no way you can truly have a Wilderness with no toxicity, as the toxicity itself is necessary and a huge part of the ability of becoming kills (even though it doesn't have anything to do with combat ability).
