My main issue with Twitter now is the recent (undocumented) change to the mobile apps for "suggested tweets." (example: http://i.imgur.com/AfsmQgW.png )
As mentioned by the commentators, Twitter has a discovery issue. Twitter's solution is to put "suggested tweets" below the normal replies, but without any clear discernible division. (just "Suggested by Twitter" in light gray color). Way too many times I accidentally read suggested tweets instead of normal replies while instinctively scrolling to the bottom and I get very confused.
As mentioned by the commentators, Twitter has a discovery issue. Twitter's solution is to put "suggested tweets" below the normal replies, but without any clear discernible division. (just "Suggested by Twitter" in light gray color). Way too many times I accidentally read suggested tweets instead of normal replies while instinctively scrolling to the bottom and I get very confused.