> They just have to trim down to a profitable and stable level
Assuming such a thing exists. Which it might not; sure, Twitter could stop trying to generate growth and cut a bunch of costs, but there's no guarantee that that wouldn't result in a gradual (or rapid) exit of user time and attention (in general, or just in the advertiser-valued demographics) to other services, as Twitter stopped moving forward while the market kept moving forward.
Assuming such a thing exists. Which it might not; sure, Twitter could stop trying to generate growth and cut a bunch of costs, but there's no guarantee that that wouldn't result in a gradual (or rapid) exit of user time and attention (in general, or just in the advertiser-valued demographics) to other services, as Twitter stopped moving forward while the market kept moving forward.