Community Guidelines strike

A first breach usually brings a warning, and a strike after that suspends abilities such as uploading, live streaming or posting for a period. Three strikes inside a 90 day window can end the channel. Each strike expires 90 days after it was issued and is tied to a specific piece of content that was removed.

Two things get confused here. A copyright strike is a separate system with its own counter, so the two do not add together. And a video being taken down, demonetised or age restricted does not always come with a strike, which is why the notice in Studio is worth reading properly before assuming the worst.