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Very common. I suspect they slowed down post-2020.

I had no idea you could do querying for twitter like that...

Yep, it has almost the same feature set as the dev API. You can get really specific without knowing what exactly you’re searching for.

Do you always have to put it in parenthesis to make it know you're trying to do an advanced query?

Very, very common.

Our entire school district did it for decades.