I've found it helpful to at least look at it as a personal preference, even if no one else wants it. If it helps you, do it.

Such best-practices are an interesting not-so-universal thing in a lot of areas. IMO this often has a lot to do with employer relationships.

I've found that a lot of people are really proprietary about documentation, (not even getting to architecture yet) and treat their time spent documenting as time spent giving away their negotiating leverage.

Sometimes this is a good point to consider though. The situation where you are happy with your work and the situation where the organization needs to start paying more attention to your value can be examined separately and you can make decisions about sharing your documentation work separate from decisions about the documenting itself.

Others don't feel a need to hold back, but they would rather work on more apparent or pressing issues (i.e. more obvious to them because of their differing work perspective). It is then left to the contingency thinker to justify themselves, which can be really difficult.

Regardless, it's important to decide how you feel about it and how helpful it is to your perception of your value and efficacy, as well as the outcomes you desire in your relationship with the organization. Good luck.