Usually, active gamblers will easily reach a $5k wager, so they can claim the $5 as a free bet. But if they don't claim it, that okay because every gambler wants to take advantage of promotions to increase their bets.
It's hard to believe that someone would reach that amount just to claim those 5usd, I would do it but not to claim so little money, that's a lot of effort for so little reward, if they gave the 5k I wouldn't say anything, I agree that there are all kinds of players and that they can make a difference, in these cases I would like to see a player who Would try and achieve it just to observe how he or she handles it and how long it takes to achieve it.