[andrewingram]

I'd hazard a guess that there's a large gulf between proportion of users who know as much as you, and the total number using these tools. The fact that a message can perform wildly differently (in either cost, or behaviour if using one of the mitigations) based on whether I send it at t vs t+1 seems like a major UX issue, especially given t is very likely not exposed in the UI.

[bavell]

I definitely agree that it should be shown and obvious in the UI. They do show a warning now when resuming old sessions but still could be better.