You fail to see the simplicity, if you know your playing a bunch of cheating kernts and let the umpire know, then you may get the benefit of any doubt. If you are known as someone who will walk, the umpire may and usually does give you the benefit when you aren't sure. I play hard, I sledge, and I push the rules as much as anyone. I am embarrassed by bad appealing when its obviously not out, but claiming catches that don't carry and not walking for huge edges is simply cheating.
An example as a chap who is known to play hard and fair, batting well the batsman is not aware that the keeper has crept up to the stumps as the bowler is running in. Plays and misses a shot he wouldn't play when the keeper was known to be up and is given out by the umpire...the batsmen turns to the young lad keeping and says it's usually good form to advise the batsman you're moving up. 1st slip pipes up and says I told him to do it. As the batsman is walking off saying that was poor form, the opposing Captain recalls him.
I got 70 odd that game and got a tiny edge. The umpire gave not out, but I walked. Then they bat and two lads walk in a similar way after faint edges and we won. It had been a bit tense but by being nice and saying that was bad form I got a second chance to bat on and turned a heated nasty game into a hard and fair game.
Yes I'm aware that won't happen all the time, but that imo is how to play the game well! If you expect people to cheat you cheat. If people see honesty, most/all decent people will play the same way.
So no ginger beer that day and cricket and my team won.......I left in a Saab, don't do public transport