I think to choose the right certification parameters is one of the most tricky things in UCoin, so here are some ideas to that:
A too low parameter of allowed cetifications per time would hinder growth, especially in the beginning
A too high parameter would encourage creation of double accounts.
To start with two assumptions:
- growth will happen most likely in bubbles, as awareness comes and gos normally
- if ucoin succeed average growth of ucoin is exponential
that means sometime we need more certifications if there is a bubble and new users come in sometimes we need less.
- lets say we allow only one certification at time frame X (to get some idea lets say one week)
that means with 3 required certifications per member we could grow round about double if 3/4 of the members take part in certifying new people.
normally communities in the longer run tend to have at round 10% active members if there is no burst time.
so we could grow round about 10/3 = 3% per month
the question is now how we could allow to have more certifications in case of bubbles and at the same time do not much encourage creation of double accounts
A possible solution would be to give some economic incentive for that:
Lets say one certification cost the Universal Dividend for one week
Lets say 1 certification per week per member is free
Lets say max 1 certification per day is allowed
that means in case of need members could start to certify more new members
but still we would have en economic incentive to be honest, because if the certified member was not able to join the web of trust, through for example not fulfilling the distance rule, the used coins would be gone.
Because all transactions are on the blockchain is would also be transparent from where the coins for the certification came.
What do we do with the fees?
One solution would be to just destroy them.
Another solution would be to give the fees to the miners.
I think to give the fees to the miners would be the best solution, because under the condition that the mining is fair for all members, the coins would be redistributed to all members who take part in securing ucoin.
Secondly we should think about allowing the undoing / revoking of certifications.
The same as with certifications, they should be limited per time, so that certifications are not canceled easily
so lets say we choose the same parameters:
Lets say one revoking of a certification cost the Universal Dividend for one week
Lets say one revoking of a certification per week per member is free
This would allow to cancel to certifications to known fraudsters, before they could do more harm to the web of trust.
Further we should consider to change the distance rule for new members.
One rule could look like that:
**- new members are defined as members who have up to now never renewed their member ship **
- new members are excluded for the consideration of the distance rule check of members who renew their membership
What are your thoughts?
I think thats a clear point we should think about it.
Here some thoughts to that:
Even if the certifications are 100% free, as long as they are limited, they have some value, so it could be very likely happen, that in the longer run some market is created around certifying people. I think we should not consider this as per se bad, as long as it helps to certify true people in an transparent decentralized fair way.
Nevertheless here an suggestion without fees, that would give more flexibility then the one week proposal:
one can make only 4 certifications per month
one can undo only 4 certifications per month
the upper limit of certifications is limited by the limited certifications per month and limited validity of one certification
now we have different models to compare.
4 certifications per month would give more flexibility then the one week proposal, but still would be very inflexible in case of bigger needs, see the numbers above. and still certifications would be limited, that means also here in the longer run an certification market could happen to evolve.
the question is if we want now think about or later, and yes we should also consider the feeling we give to new people.