Is it better to comment? Or to post a discussion?

post a discussion .

Better do booth as writen in the faq.. :)

I would say post discussions and reponses. That way, you know you are getting paid either way and then the other posters here have the opportunity to respond to your posts and discussions.

There is no hard and fast rule. If you post replies to discussions you will be dealing with a subject that has been asked and will not need to spend time thinking about which subject to chose, but will then have to find another appropriate discussion to respond to. Whereas if you chose a subject of interest it may take more time to select the subject but if many people respond you will be able to comment on their replies. However, if you get no response from other members then the time involved would be greater. All in all it is a matter of chance, so you may as well respond to posts that interest you and simply start a topic when a good subject comes to mind.

I don't think there is any way to tell, maybe one day only respond, the next only post, see how it goes.