I get your frustration, but one of the things complicating your situation is that even though your first intro post was on the 27th,it doesn't appear that you actually posted your fifth post until the 3rd, and that was the second of your posts in this thread.

When I joined I posted all of my first five posts in one day, and then obviously was granted access of a regular user.

I can see how it would be frustrating to hang out for a week and not be able to fully participate, but your frustration may have been increased because the mods didn't actually have anything else to approve [so to grant you regular user permissions].

I would encourage you to maybe rethink your decision to run off- the five post thing is actually one of the ways to keep the community more intact, cohesive and actually more "community like".
There are a lot of boards/forums that have similar policies in place and I think it might be difficult to find a similar way of vetting individuals in a passive and non-confrontational manner that was as simple to implement or as effective.

Maybe try take a wider view of this: as a regular member, you would likely not see a huge number of random spam postings or fly-by-night jerks who are ONLY here to make trouble.
You might not notice the lack of those things, but you'd certainly be frustrated if they were common place.

I encourage you to check things out, maybe say hi to a few people, check out chat [the level of activity can ebb and flow in chat, so give it more than one chance].

This is a very active community, people are here around the clock posting and interacting.

Give it a chance.