If you use a suitably obscure hashtag it introduces you to other similarly obscure but totally different groups trying to use the same hashtag.
I've thought about going all aggro to assert dominance and claim a hashtag, but... no seriously I'd not do that WTF đ€Ł
Anyway.
You too can look like a total nutter and throw small planes up in the air and fly them around. If you get good you can fly them around for near as long as you want off a couple throws.