I'll let you in on a little life secret, people more often than not will treat you how you act. If you act immature or irreverent, like you did in this post, people will treat you like a child. If you act mature or insightful, people will treat you like an adult. I've had tons of discussions with teans and if they act like adults I'll treat them like an adult.
The reason why your original post is immature and childish is because you do not use any critical thinking skills to solve your problem, you just whine and complain.
Part of being an adult is identifying problems in your life and using critical thinking to determine the root cause of those problems. If you don't do that then you'll never be able to actually solve your problems because you won't know why they are happening.
For example, your problem is that you are getting punished by the leavebuster system. The root cause of your problem is not the leavebuster system. The leavebuster system protects the vast majority of the league population from those seeking to ruin games for other people. Furthermore, the leavebuster system is clearly defined and explained to the terms of use you agreed to when you decided to play this game. If you don't agree to the leavebuster system you should have never clicked "I agree."
The real root cause of your problem is that you do not have a computer and/or Internet speed fast enough to play League. This is further compounded by the fact that for whatever reason your parents don't think you can manage your time on the computer and so they have implemented an automatic shutdown on your computer.
Here's what a mature version of your post would look like:
"Hey guys, I really enjoy playing league but my computer/Internet speed is too slow to play it. It frequently takes around 10 minutes for the game to load which has resulted in me getting punished by the leavebuster system when I wasn't intentionally afking. I've spend a lot of time researching how I can improve my Internet and computer speed but nothing has worked so far. I asked my parents if they would be willing to upgrade my computer or the Internet but they said they didn't want to spend the money. How can I convince my parents to upgrade our Internet or my computer?
Additionally, my parents have set a timer on my computer that automatically shuts it down exactly at 9 pm no matter what I'm doing at the time. A couple of times I have lost track of time and been playing a game of league when 9 pm hits, causing me to disconnect from the game because my computer automatically shuts down. This has resulted in me also getting punished by the leavebuster system. How can I convince my parents to remove the automatic shutdown from my computer or at the very least convince them to push it back to 9:30 or 10?"
Do you see the difference between your post and mine? Your post just whines and complains, blaming Riot for things that aren't their fault. My post presents a problem, tells what I've done to try and solve the problem, and clearly articulates what help I am looking for.
If you had written a post like that you would have gotten a couple people who trolled you but you would have also gotten people like me who would have given you useful advice.
If you had written a post like that I would have told you that parents respond positively when you take on more responsibility and show them that you are growing up and becoming more mature. I would have encouraged you to try and make a deal with your parents where you do something extra for them (more chores, better grades, learn an instrument, etc) in exchange for faster Internet or a computer upgrade or a later shutdown time on your computer. I would have also encouraged you to find easy jobs that can net you some cash on the weekends and summer. If you saved up you could buy a brand new computer within a year.
There's tons of stuff you could do to change your situation if you are willing to work at it. But no, you'd rather be an angsty teen who thinks everyone looks down on him. You'd rather blame others for your problems rather than accept responsibility and do something about it. So with that I'm done with this thread because I know that you lack the motivation or the resolve to take my advice and do what it necessary to change your situation (but I would be quite pleased if you proved me wrong.)
Good luck. I hope these life lessons resonate with you sooner rather than later.