I have made really good profits (They are free
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
) from AirDrops I have joined. I have only registered for Airdrops the last four-five months, one of them is now worth 2500$, another 500$ and multiple 1-20$.
If you have the time, I recommend to sign up for the ones that looks legit. But be careful, there are people using these kinds of Airdrops to harvest information. I would suggest you create a separate email, twitter and telegram that you use for these kinds if things.