Let's just say you're realistically going to need to get the full 20 for this to be worthwhile (for the 2x point multiplier).
So chojin needs 20 referrers.
Those 20 need 20 of their own... 400
Those 400 need 20 of their own... 8000
Those 8000 need 20 of their own... 160,000
Those 160,000 need 20 of their own... 3,200,000
Those 32,00,000 need 20 of their own... 64,000,000
Those 64,000,000 need 20 of their own... 1,280,000,000
Those 1,280,000,000 need 20 of their own... 25,600,000,000
Aaaaannnnd we've run out of people in the world within 7 levels. Well that's fine. Most people aren't going to get the 2x multiplier. But you can still get the big screen TV. All you need to do is log in every day and answer the daily question for 2.05 years. Clearly that's not something you're going to get bored of within a month and it's not like the following sentence is in their terms and conditions:
Pointz are only valid until the end of the current calendar year and do not roll over into the following year unless specifically agreed upon by Lockerz.
...waaaaaait a minute.
But you can still get games and shit! Why wouldn't they give you items with a high monetary value for doing nothing? What motive would people on the internet have for offering you things for free which are obviously worth more money than they could possibly be making from you accessing their site every day?
But they've got a good track-record. It's not like a new unproven site or anything. It's not like they could get a shit load of people sending out invites then change the rules or run the site with high-traffic for a few months, make all their money then shut it down before sending out a single reward.
No, no. This is is a foolproof way of getting a new TV if ever I saw one.