Add User Defined Tags for Activities

[madosta]

User Story
As a Strava User (maybe Subscriber?) that enjoys trying out different training criteria
And has just finished an activity
I want the ability to specify my own tags (e.g. 20-tooth, baby-seat, red-socks)
So that I can report on activities with my specified tags and further personalize my training experience

Save/Edit Activity with User Tags (20-tooth and baby-seat, etc):

Filter My Activities by User Tag(s): 

[NalinR]

This is an excellent idea, especially if combined with the ability to filter by tag in the My Activities page. For example, I would love to be able to tag any activity associated with a particular training build (runs, yoga, strength work, etc) with the race target of that build (say "CIM 2024"). Then later I could pull up any activity that I had tagged as part of that training program.

I believe it would also address the issue of stroller runs (https://communityhub.strava.com/t5/ideas/stroller-running-and-sports-with-extra-weight-in-general/id...). If I could just tag "stroller" with any run (or bike!) and filter in My Activities, that solves that need as well.