Many badges have fixed requirements, such as:
- Answer score of 100 or more
However different websites means a different level of difficulty: the more active users a website has, the easier the badge is to get.
On a new and/or low-view website getting this badge may be impossible for several months; on a website like stack overflow now you can obtain it in a day, and it's relatively easy (compared to other SE sites).
Do you think it would be a good idea to implement a formula that allows the required score to scale? The more active users voting, the more votes are required to get it?
If yes how would you handle people who got it for a post that no longer meets the requirements?