Update style guide to include anti pattern of mentioning someone in a comment and the flurry of notifications that result.
Came up in a google contributor roundtable discussion.
We are pausing our cadence of removing deprecated API from the framework until we can create a new policy.
The last couple of cycles we noticed customers having more difficult migrations, and it being harder to remove the APIs in the scheduled time period. So we need to reevaluate the policy and update it.
This is the policy working as intended. Signals like flutter/tests provide feedback on how we are affecting users - so that for folks that contributed!
Related to https://github.com/flutter/website/pull/10839
