# Some suggestion for finetuning the Certification parameters

**URL:** https://forum.duniter.org/t/some-suggestion-for-finetuning-the-certification-parameters/644
**Category:** Discussion
**Created:** [4 January 2016 16:44 UTC](https://forum.duniter.org/t/some-suggestion-for-finetuning-the-certification-parameters/644 "2016-01-04T16:44:20Z")
**Posts on this page:** 1
**Showing post:** 14

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### Author: ![cgeek](https://forum.duniter.org/user_avatar/forum.duniter.org/cgeek/32/279_2.png) [@cgeek](https://forum.duniter.org/u/cgeek)
#### Post date: [4 January 2016 23:30 UTC](https://forum.duniter.org/t/some-suggestion-for-finetuning-the-certification-parameters/644/14 "2016-01-04T23:30:40Z")

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About your propositions @Arcurus, I am opposed to all of them this time 🙂 you will find details on why just below.

> [@Arcurus](#):
>
> normally communities in the longer run tend to have at round 10%

So a 10% growth every trimester (roughly the same as 3.33% / month) means we make x10 every 8 trimesters, so 2 years. Let’s say we reach this 10% of active members once we reached 1.000 members (because obviously, the very first members of the community will actively try to make people join). So we reach 100.000 members in just 4 years. That’s what Bitcoin did, we are all good! Two years later, we reach the million, even Bitcoin can’t do this! 😉

So to me, your first question is off-topic. We do not need it.

About fees, we already taked about it in a different context though: [Transaction fees: bug or feature?](https://forum.duniter.org/t/transaction-fees-bug-or-feature/40)

> [@Arcurus](#):
>
> Secondly we should think about allowing the undoing / revoking of certifications.

I already answered why I am against in this topic: [Certification best practices - #23 by Moul](https://forum.duniter.org/t/certification-best-practices/617/23)

Anti-certifications, or certifications revocation which is the same, are offensive weapons. We only need defensive ones.

edit: also wanted to comment this:

> [@Arcurus](#):
>
> What I tried in the suggestion above is to give an economic incentive to stay honest

Making certification costly does not lead to honesty. It leads to power in the hands of people in function of their money supply. So the power to the richest people.

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