I posted my 7400th bookmark on pinboard.in today.

I've been thinking I should go back and organize my bookmarks[0].

I might still do that but I don't think it is important: the important thing is I can find stuff I saw years ago.

Sometimes it is useful, sometimes not: it might have disappeared, or might not be as good as I thought back then.

Possibly more important though is the fact that it allows me to forget about it.

A few tricks I use:

• I use hidden tags to add context I don't want to share to my bookmarks. For example I add .interesting to something I should get back to or .project to something that I look into because of a project I'm working on. (And “projects” can be both .learningAngular as well as .newCar2018 or .doomedSideProject432).
• I use : to namespace tags. As a practical example I often add a license: tag to open source projects I bookmark.
• When I realize that I have already bookmarked a page sometime before I'll add a .secondTime hidden tag.

[0]: my collection is older than pinboard.in and used to be on del.icio.us back before they were bought and “improved” until they became unusable.