Looks interesting, a few questions:
1. is there any threshold for kick start the project? And an upper limit?
We did not define a lower limit. If we end up raising an utterly insignificant amount, we may chose to refund it but this will be decided at the end of the token sale.
The upper limit in terms of funding is 7000 BTC and in terms of time it's 2016-12-31 23:59:59 ... so at the very latest, the token sale closes at the start of the new year, CET (central european time).
2. social campaign is in TVE, best choice there, easy to manage the campaign and eliminate the spammers there, but now there are more and more spammers there.
We're aware of this issue and will try to deal with it intelligently.
3. Asset on ardor, escrowed by nxt community, do you accpet nxt and ardor investment? Or only btc payment? OP is too long I didn't read a lot.
We accept BTC and NXT. NXT is converted to a BTC value (note: only the 'value' is converted though basic mathematics, all NXT received will be held as NXT for now) based upon the price of the latest NXT transaction on Poloniex at midnight (CET) each day.
We understand that everybody is busy and that time is precious but if you have any interest in our project at all, we would encourage you to read our whitepaper. It details our plans, backgrounds, experience and lots of other relevant information which will help you decide if our project is of interest to you.