I've been playing Jinx since season 3 and i've played against all match-ups at bot lane. In season 7 bot has changed and many players are often playing Caitlyn, Lucian or twitch. This makes jinx suffer her early game. Jinx has no reliable escape for early game so she can easily be taken down. For the first 15 minutes she doesn't deal much damage, and is practically useless. It is difficult to win lane as jinx vs a champion who pokes hard. Maybe Riot can buff her early game a bit so she can hold on and do something in laning phase. Jinx is more useful during the late game.