SkQn is completely correct.

ELO Hell is purely theoretical and an excuse that you have bad teammates due to your luck when everyone has the same chance. Calling a certain stage 'ELO Hell' assumes that you are better than those around you, hence you don't deserve to be in such standards. Their team has an equal chance of getting bad or good players, same as you. ELO Hell was once a debatable topic, but has largely subsided to an excuse for one's ELO not being as high as they desire.

Assumingly, ELO Hell exists at all ELO's. Even at 1700+ (personal experience), there are people who are bad, rage, quit, and blame others. With that in mind, that is essentially ELO Hell as well.

Truth is, if you CAN be at a higher ELO, you can easily be there by constant playing - no one has the luck to have all AFK'ers on their team, with the enemy team being stacked - there is an equal chance.

It is just about skill level and how good you ACTUALLY are compared to how good you THINK you are. I've seen people climb with every role in the current meta. To declare that there is a shortcut just convinces people that they are very good and better than they are - when the shortcut does not work as effectively (or at all), they blame ELO Hell and their 'bad luck', which is my beef with any general guide on getting out of 'ELO Hell'.

That being said, this guide isn't very clearly formatted. Giving tips to be a better player to get out of ELO Hell would be a fantastic guide if well done. However this guide tells you to be a rude player by ignoring your team and all in all, create a bad personality. One reason ELO Hell exists is because of the majority of people who believe that they must rambo-carry their team.

This guide just supports what I hate most about many ELO Hell complainers - they assume that they are the ones who have any skill. You don't take Flash, and rely on heal/ignite for kills. You don't learn how to make plays, how to save and kill enemies in advanced or tactical manners - just how to win a 1v1 so you get 'fed'.

You don't go into detail or any sense of information explaining about how to farm, how to use your skills properly, how to ward, and so on. You just blatantly post videos and expect people to watch and learn from that. In that case, your guide would be unnecessary, a link with all the videos would be ideal.

You suggest heroes without any basic suggestion on what to build (and if you really want to go solo-rambo in the lower ELO's, there are much better champion picks that you could use such as Sion, Malphite, and so on.