Well I can think of a few reasons for their problems... conversations can get hard to follow when a dozen people get involved in them, one sentence easily takes up the 140 character limit they impose and that's without hash and at symbols involved, they turned off the API and switched to tokens for popular 3rd party apps which in turn caused a loss of users not willing to use inferior apps as twitter refuses to give more tokens to apps.
Well I can think of a few reasons for their problems... conversations can get hard to follow when a dozen people get involved in them, one sentence easily takes up the 140 character limit they impose and that's without hash and at symbols involved, they turned off the API and switched to tokens for popular 3rd party apps which in turn caused a loss of users not willing to use inferior apps as twitter refuses to give more tokens to apps.