Fine-tuning the roles in Membership

Hi ya,

First off, great plugins, site, forum, the works - I'm very pleased I joined.

Q1: Is it possible, using Membership, to allow a member to automatically publish to the site if they have already been approved a number of time (e.g. 10 previously approved posts, image uploads, etc...).

Q1.1: If not via Membership - any ideas?

Basically, I building a free membership site that will allow a wider, more responsible, range of activities (setting up groups, posting articles|uploading to galleries without needing prior approval, etc...) after they have been active and shown themselves 'trustworthy'.

I'm thinking I may use something like Achievements to help automate a users progress, but I am SO open to suggestions.

Thank you in advance for your input, consideration and support...