Ok, don’t take this the wrong way, but the first thing would be to read around a lot and avoid creating very generic questions such as the ones you’ve placed here. With two opening questions you want to cover from gaining knowledge of crypto (and presumably the forum operative) to making good posts, both of which are not really new. I mean you can ask them by all means, but if you do a bit of legwork first, you’ll see that you can narrow down the questions to more specific ones, giving a better impression on the whole.