Airdrops? if you guys can still find some interesting project there and you're going to do it for free, there's no problem with them and as you say, don't expect too much on them and just rely on your luck there.

I only hold top altcoins but they're not a lot of it. It's okay to hold a bunch of these altcoins preparing for the peak of this bull run or during this altcoin season.

But, too much diversification is going to be bad as well when your mind will want you to profit for as long as you can with everything that you're holding there.