Consider the following scenario:

I go to https://stats.wikimedia.org/v2/#/pl.wikipedia.org/contributing/active-editors/normal|line|2-year|~total|monthly and figure out certain trend in the development of the number active editors on a community mailing list.

If I send that link as-is, it seems to me that it will always refer to the "last 2 years" - so when viewed, say, a month later, the timelime will shift so the graph will not be the same.

When I set the fixed timeline (say Apr 2018 to Jan 2019) the URL changes to point only to that period (a permalink):

https://stats.wikimedia.org/v2/#/pl.wikipedia.org/contributing/active-editors/normal|line|2018-04-07~2019-01-01|~total|monthly

M296 Wikistats with a fixed time slider

10

There are two use cases:

1. I want to link to the functionality of getting last two years worth of active users of pl.wikipedia
2. I want to a particular dataset I am seeing

I think the second use case is more prevalent and should be how the URLs behave