On many people's profiles I see "player," "nidan," "shodan," etc. What does this all mean?!?!?!?!?!?!

These are the dans for blackbelt, you get these by posting.
This was already discussed, there's a search button on the top left of the screen.
I believe this has no use anymore, you should lock it.

it depends on the # of posts you have...
as well as do the stars you have
but there are more names then stars

Then why am I only "player" even though i have over 80 posts?

i don't know whats up with the post count latly... i know i have more posts then shown and it only says you have 19 posts...

yeah your profile says :
Posts:
Wibbles 44
Clan talk 14
Support 9
SyN 6
spirit 5
Hall of shame 3
Suggestions 2

but under your forum name it says player and posts: 19...

Wibbles and Clan board posts are excluded from the post tally. Which would leave:
9 in support
3 in hall of shame
2 in suggestions
And my guess is 1 in a few other post-count boards.

There is nothing wrong with the post count tally, but Wibbles was made as a spam board and, as such, no posts there are counted.