And i wont be able to prove that my posts will be of better quality after joining?
No, you will not. Things do not work like that here. Besides, you would be trying to improve your posts solely for the campaign, i.e. wrong reason.
Update:
EDIT: there isn't any room anyhow.... thanks for your quick reply Lauda, and congratz on your recently new position.
There rarely is room. Thank you.