@ vuVuvela Rapture:
"Forcing a suicide" and "gimping" are nearly identical. Compare, for instance, to footstooling a double jumping Yoshi offstage.
Was it an attack or not?
Hard to say, and in fact irrelevant. Point is, something you did stopped Yoshi from returning to the stage.
Lol, I didn't think that's what another thing vVv could stand for. I like that. xD
Forcing a suicide and gimping aren't identical. Forcing a suicide would essentially make a situation's only result a suicide and whatever the rules implement for succeeding that event. When someone forces a suicide, they make that instance result only in a suicide without any chance of anything else. Not only that, but forcing the suicide also means that the opponent is giving the opponent only one option after executing the movie, one of which does not include victory though the point of the attack is, indeed, to win or avoid losing.
Gimping doesn't necessarily force a suicide, as someone can recover from an attempted gimp and every gimp attempt does not lead to an automatic suicide.
Also, gimping is not manipulating the opponent's attack to end the game/lose stocks. Gimping is the act of the player using a move (or footstooling) to stop recovery, but forcing the suicide, in this case, only means the opponent has to literally move in front of the opponent to force it. This isn't an attack. This is manipulation knowing that, because of the rules, favors their option.
Either way, gimping is fine because it is risk/reward. If a player tries to gimp, they are putting themselves at risk of not recovery, either. Forcing the suicide is different, since both characters have no option to recovery from the forced suicide regardless of what they do. Not only there, but there is barely any risk at forcing the suicide.
If someone is forcing the suicide, they are probably in a situation in which they need to do this to win. That makes the reward a lot higher than the risk. The rule is essentially giving people a reward for moving in front of Ganondorf for no other reason than the fact that they are losing (or, hypothetically, to get rid of Ganon's last stock if he/she has more than enough to spare, which is another case entirely, I suppose).