If it looked like to DVC that you were a professional renter, then your business could be shut down.
About half or more of your 'earnings' would go to pay your dues.
Personally, I advise against doing this. DVC can track an owner's reservations and if it looks like they are renting professionally to them, then can act.
If you bought OKW or BWV back for around $60 a point, and managed to get a number of repeat (i.e. easy) renters for your points, and charged $12 for them - you probably did really well between 2003 and mid 2008 for the amount of time invested. You might be scrambling to rent those points now, and might not be getting $12 for them - but you'd only need to get $8 to cover dues and bother - not much of a profit, but it would cover your costs until the market picks up. Or you could sell your points and still get a profit.
If you buy BLT for $100+ a point now and are competing on the rental market with people who bought for $60 and are just trying to cover dues this year and not take a trip until they get a new job......No. Though sometime in the future it might be different.....assuming you fly below the DVC rental police radar.
I hope it wasn't your intention to laugh at the OP's question. Perhaps a couple reasons for your answer would have been more helpful than your response.