How do you de-rank in CS:GO competitive? What statistics decide if you derank or not? I'm trying to de-rank to silver one to see what it is like.
The best way to derank would be to lose but losing on purpose is against the rules of playing competative. If I were you I would create a new account and maybe let someone who has never played play your placement games for you and then you take over after they have been placed in silver. Its also worth noting that no one likes to play against smurfs. Its not fun playing a game and loosing because someone on the other team is smurfing and carying their team with 40+ kills.
Imagine you're a new player:
You just bought the game, played a couple rounds and received a Silver 1 rank. Now, your ability to improve your skill is severely dampened because higher skilled players want less of a challenge (or in your case "to see what it's like"). A low level player is going to be very frustrated by this.
It's very possible you will just quit the game because your opponents are too hard.
Back to logical thinking:
As you play the game, your rank will change over time. It's Valve's best attempt at putting a number on your skill level. This rank is specifically put in place so that matchmaking can setup a *fair** match for the players.
A serious problem though:
High skilled players will buy a second or third copy of the game just so they can play amongst the noobs again. This is called Smurfing.
These people achieve a high rank but then they get lazy/bored with high-level play. They want a break from tougher opponents and wish to dominate noobs for a while.
This is the equivalent of a playground bully, imo. Smurfing is for low-lifes who haven't realized how sad their life is, yet.
Valve would never voluntarily allow bullying. The option to derank does not exist. You will derank if your performance is poor. You will rank up if your performance is good.