Wasn't expecting such a negative reaction to this. For Issues, the feature isn't particularly useful to me, but for Pull Requests, it's a great way of declaring who needs to sign off for the PR to be merged. When big features come into PR, people where I work were reluctant to use the 'Assignee' feature at all because it implied that the PR was already 'taken' for code review. Now, a front end engineer can assign themselves to do the FE review and a back end engineer can assign themselves to do the BE review, and the reviewers can be directly seen from the PR list. Nice.