Yes. For the foreseeable future, there will be free screenshots for everybody. You may have to wait in the queue when there's a lot of demand, or you can buy priority processing.
45.
No need to extend requests to avoid expiration.
46.
How long will my screenshots stay on the server?
47.
%(preset_count)d Presets (Choose One)
48.
This is possibly because you enabled 32 bits per pixel on the factory details page, but this bit depth is not supported by the VNC server.
49.
Browsershots respects the robots.txt standard. If you want, you can explicitly allow Browsershots by adding a section like this to the robots.txt file on your server: