But what if we reduced it to 1-3 days and on top of that, they have to do a bunch of things
Read this:
Limiting newbie participation is very harmful for a community. Newbie jail will never return: I consider the newbie-jail period to have been extremely damaging to the forum. When barriers to participation are too high, then the best people often just won't go to the trouble of joining, and the people who are willing to jump through the hoops are often people who aren't good for the community: people with nothing better to do, scammers, get-rick-quickers, etc. Having a permanent newbie jail policy would improve things a lot in the short-term, but would end up being a fatal poison to the community.
that would mean that someone would have to pay almost 40 USD to remove that thing. In that case, percentage can be only lower.
It's capped at the price of the copper membership which is currently 0.0006BTC.
Before the cap, things were even worse:
Your account contains 19,955.70 units of evil. To atone, you must pay a total of 0.00576923 bitcoins (5.76923 mBTC; 576923 satoshi).
That's $58!