I can suggest that you keep the raffle participants limited to only those who have been active in the local board in the last x number of months, you can decide how much to put in, that applies to higher ranks too. I know many senior members are not visiting this board because of a lot of reasons, myself included.
Yeah, each raffle participant's post history will be looked after and verified before they are added to the pool.
The engagement in this board has gone down drastically over the past year and we believe posters are either unwilling to show off they belong to India to prevent government scrutiny in the future or they have moved onto other platforms such as reddit or twitter! IMO twitter is where the real engagement/market movements takes place nowadays be it the LUNA crash or FTX fiasco and if we are very active in the platform we can spot the trends before anyone else browsing other crypto platforms such as bitcointalk/reddit.