Twitter Reports First Quarter 2014 Results

I'm at the final stage of interviewing with Twitter. Should this report make me nervous about accepting a potential offer?

Use it to negotiate more RSUs.

When the lockup expires their float is going to skyrocket which will presumably put downward pressure on prices.

Timeline views grew slower than users, suggesting people aren't using Twitter as much. Hate to say Twitter may be the next myspace.

Does stock based compensation of 640 million mean that they are buying 640 million dollars worth of their own stock each year?

Is this a good time to buy TWTR?