I believe that investors of Polkadot ICO where the very lucky investors since the ICO was launched few years ago. How i wish that there's a bounty for this project but i found nothing except for their bug bounty that is far beyond my skills. With a project such this that is well funded and with so much hype, i can only hope less for them to offer bounties like i used to participate in this platform.
Polkadot don't find any interest in bounty campaign that's why they never introduced any but there are big projects like Polkadot that did introduced bounty campaigns, you just need to be active and watch out for new bounties, we have seen Ferrum, Cartesi and DIA, they are big til this day
Ferrum, cartesi and dia are not so big like DOT. DOT has been getting massive attention from investors. DOT didn't even need to spend some penny to create a promotion. So many investors have been watching polkadot since it was getting published on the various ico sites. I remember when there were thousands of people who have prepared themselves to join DOT ico.
A company that has been getting very huge exposure will not need to create a campaign to gain awareness from investors but it looks like the demand for DOT has started to decrease.