I see how people have ranks Like Notable Member and Dedicated Minetimer may some one tell me how you earn that?
It's all up to how many posts you have. For instance, I'm "Dedicated Minetimer" because I have roughly 1700 posts. You'll get "Member" soon if you keep posting. More info: https://www.minetime.com/threads/user-titles.5609/
See the icons below a post? Those are ratings. People can choose depending on their opinion of your post what to put. You don't have to do this nor will people always give you ratings () Just scroll over to see them. I rated yours 'Winner' as an example
Adding onto what cheesymac33 said, there are "Positive" "Negative" and "Neutral" ratings. The positive ratings are: Like, agree, funny, winner, informative, friendly, useful, and creative. The negative ratings are Bad Grammar/Spelling and CamelCase. The neutral ratings are disagree and optimistic. Make sure to rate posts appropriately and report anyone who rates you in a way that seems unfair and/or excessive.