Min Buyin Hit and Run Players are ruining the game..

[hondoishere]

I feel like in certain situations it's ok to double up and leave with a 10 or 15 buy in in PLO25. Today I'm playing a guy who has a reputation for raising preflop with everything. I have KKJ4 DS and he raises so I raise and he reraises I go all-in. I win the hand but the next hand he does this to some other ppl hit and makes his hand for 50 bucks. What type of play is this. Then he goes all in on a 988 board with a straight draw. This is absurd he just wants to double up and leave and I feel like theres not much choice for anyone else if they dont wanna get sucked out.