You'd have to make a new post every 3 minutes for 13 hours a day, every day of the month.  Realistically, there's no way to read a thread, digest the information, formulate a constructive response, and then type it out every 3 minutes for 13 hours in one day, let alone EVERY day.

True, but some pay in advance, and you can always ask for escrow to be used.

It wouldn't be a problem if they paid in advance or used escrow, but as far I'm aware, this one doesn't.

Last time I checked, the internet was part of reality.

Yes, no post should be unconstructive and always be relevant to the thread or topic.

Constructive: "having or intended to have a useful or beneficial purpose". As long as you're not trolling or spamming or posting useless stuff then you should be fine.

Starting posts:  2199
Bitcoin address: 1EEPvahoA4gAmRs66dKvbYpm8jSZUo6PyL

do i need to signup every month for this service by telling my initial post count for that month, or do i have to signup just once and then i can keep on telling you my post for each month by pm?

You need to get 50 activity first, and then what deisik  said.

And besides 50+ activity you also must have 50+ posts or you won't be able to sign up.

You can. If you will manage to change your activity...