I would like to propose a reward system for using of the chat, with was sucessfully implemented in an other, roleplay AI chat.
The system on that site is very easy: the registered user is beeing rewarded with 40 free tokens every whole day it enter’s the chat and click a button to collect the reward.
Above results that such users willingly return and use the chat.
Additionally, there should also possibility to exchange a reasonable part of tokens for upgrading the account to a higher tier and use it free of charge (at latest for some period of time)