As someone who has played soccer for most of his life, I can tellyou that most of the time, it isn't faked. Soccer is one of the most fast-paced sports in the world, and every time someone touches your feet mid-sprint, it seriously messes with your step sequence. Also, and that doesn't happen in many other sports because they aren't mainly played with your feet, getting kicked against your shin or ankle hurts like hell at first. More than getting an elbow against your arm, for example.

I agree with you that dives are a disgrace, but not every fall is a dive. I just don't like the bad reputation the sport has because stumbling is more common in this sport than in others.

Also, there are very clear rules, and in most of the cases, at least one of these rules was broken by the other player prior to a "flop", as you call it. Why shouldn't this be brought to the referees attention? I find it much better to "report" a offence directly instead of waiting until the match is over and negotiating afterwards.

Again, I agree that dives should be punished. They are, but maybe not hard enough. Also, I think that in situations like in this gif, the player should at least see a yellow card, because the player is clearly faking it to kill time (the score is 4:3 with less thana minute to be played). But don't hate the whole sport for it, and don't think that every time a player goes down, he is faking it.