This mod stores a lot of things on the server side and some are irrelevant after a wipe, others are. Here's a QUICK guide on what to consider removing and/or keeping.

All of the named files and folders are assumed to be within the Zomboid/Lua (not the source code, the uppercase one!) directory on the server.

All files and/or folders beginning with parp_ or btse_ not named below can and should be removed during a wipe!


parp_bank/
If not removed then people will keep their full bank account tied to their username

parp_chat/♥♥♥♥♥♥♥♥.txt and parp_chat/♥♥♥♥♥♥♥♥♥♥♥♥♥♥.txt
Carries over chat mutes

parp_permissions
Preserves all special permissions on a username basis

parp_misc/rewards/groups/
Carries over all rewards groups

parp_misc/rewards/by_user/
Carries over all not yet redeemed rewards

btse_detected_exploits.txt
If you didn't notice it yet, this is worth a read and worth keeping