Nitrous & SCOTBOT shouldn't allow unstaking less than 5 days to prevent VP double spending

[economicstudio]

As stated in https://steemit.com/utopian-io/@blockchainstudio/nitrous-and-scotbot-shouldn-t-allow-unstaking-less-than-5-days-to-prevent-vp-double-spending

Currently, SCOTBOT & Nitrous system shares the voting power of STEEM. This has several problems (of course, there are also some pros), notably VP double spending.

• STEEM VP full recovery takes 5 days.

To prevent VP double spending, unstaking should be at least 5 days.

Eventually, VP should better be splitted with STEEM.

Examples

Say a steem-engine token named NED has a 3 day unstaking period.

User A (with alt account B) having NED can double spend this way.

1. Used up VP in account A
2. Unstake (which takes 3 days)
3. Transfer NED from A to B (B has a full VP)
4. Used up VP in account B
5. Unstake
6. Transfer NED from B to A (Now A has a full VP again)
7. repeat!

Benefits

• VP double spending prevention (also helps avoiding unnecessary transactions due to double spending.)
• VP should be split with STEEM. Currently, users with high SP is better to use alt account for managing their VP, which is quite cumbersome and unnatural. It's much better for users to use the same account for both on Steemit and many other Nitrous sites.

[inertia186]

I agree with the rationale and the PAL team ended up adopting a 28 day power-down with 4 transactions, for example.

{
  "contractName":"tokens",
  "contractAction":"enableStaking",
  "contractPayload":{
    "symbol":"PAL",
    "unstakingCooldown":28,
    "numberTransactions":4
  }
}

https://steemd.com/tx/4607953ca14b09a4c3d3f0546e4075db56055d9d

Any other SCOT token should also carefully evaluate their intent, if they elect to have a power-down of less than 5 days.

But this is not a Nitros issue since these options are not established or managed specifically on Nitros. This caution should be outlined on (assigned to @Vheissu): https://sto.steem-engine.com/#/launch/scotbot