Welcome to the site! You don't need to do runs competitively to be on the site, the whole point is to just have fun. I hope you enjoy watching runs and playing games!
But you probably won't run into many cheaters, whenever somebody cheats, it usually attracts a lot of attention, leading people to believe it is more common than it is. You shouldn't come to the site because you want to "expose" people for cheating. I also would recommend you don't accuse someone unless you can conclusively prove they cheated, because if you're wrong about it then you'll look bad.
If you “don't speed run cause I don't know a lot about how games work” then you probably shouldn’t be the one looking for cheating.
Yo that David is making more and more Bots? Most annoying Bot I’ve ever seen (am only on this page for like two months so I didn’t see many)
Taking into account the text is exactly the same as in a previous post by another bot except for the location, I'm inclined to believe it's just false gibberish trying to sound like an actual human being (but failing miserably in the process).
Also, the previous one was with the Name: Rootdavid and this one is davidpunk. (Not) Creative.