When participating in an Airdrop, you shouldn't set too high expectations for a project because there have been many projects that promised but didn't deliver Airdrops to users, a recent example being the SUI project. You can participate in multiple projects at the same time with the mindset that you may not receive anything from the project.

It's impossible, why would you compare Kaspa to Polygon and Cardano when their mechanisms are completely different? Polygon and Cardano are two coins that were developed earlier and already have established communities. Kaspa is a new project and has to compete with many other projects in the market at the moment.