[Mz]

Last month they had 100k unique visitors and about 4x as many pageviews.

I don't think this is enough information to go on. What kind of money are they making off that traffic? How qualitative is the community? What are the working conditions? Are they in debt up to their eyeballs and there isn't any more pie to go around even if they felt you had something of real value to bring to the table?

You haven't posted anything which really indicates they have a solid business. I have known of sites in the past with traffic but little to no income and lots of frustrating other issues. I think you need more info to have any hope of making a reasonable assessment of the situation.

Best of luck.