Does not have to though, Tweetbot's UI behaves nicely in this regard. It does not have hover, but its equivalent is to tap a tweet. This opens a small "drawer" of 5 tweet-specific buttons (reply, retweet, favorite, detail and "actions", which include posting a link to the tweet, copying the tweet's content, emailing the tweet's content and translating the tweet's content).
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I'm not sure I agree. It completely breaks on tablets for one thing.
Does not have to though, Tweetbot's UI behaves nicely in this regard. It does not have hover, but its equivalent is to tap a tweet. This opens a small "drawer" of 5 tweet-specific buttons (reply, retweet, favorite, detail and "actions", which include posting a link to the tweet, copying the tweet's content, emailing the tweet's content and translating the tweet's content).