I'm a newbie, but that's because I only make my daily post. But Chrizum is right though,the level progression should be exponential rather than linear. Easy at the beginning to get people hooked, and harder as you progress. I guess the progression in the higher levels is more interesting for mods, contributers, etc. Hence why those have been divided more.

 I really don't care, I'll just continue visiting the site, make my daily post and make a thread or two.

Please vote then in the links I provided one post above your post.  They are links to threads where you vote on the point system and the names of the ranks.  Not many people have put too much insight into the threads yet.  The more users that get involved the better.

I was currently reading those threads, but it seemed like the ranks are already set

You can be Sea Dog... waaaaaaay better.

They are semi set.  However, if you have a good idea then they will probably add it.  A few of those "set" ranks weren't even set till another user mentioned it in the post and they added it to the original post.  So if your idea is good enough you can get them to take it now which would mean perhaps more people voting for that rank name later.  The points that it takes to rank up are still being debated decently.