Signpost 'edit your proposal' vs. 'respond to a suggestion' for proposers

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I'm noticing that lots of people are adding a new suggestion as a way to respond to suggestions rather than editing the proposal content. Is this the UI? Should we somehow hint to a proposer that they incorporate suggestions into their proposal body rather than leave a new suggestion? Where it makes sense, not all suggestions by the proposer of a talk are of the "edit proposal" type.

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It's not clear that we want to enforce one approach over another, but we should signpost to a proposer what the approaches available to them are.