A common problem I've observed on Slack is that people do not initially realise that they can edit or delete their own posts. In Ryver this is arguably even more obscure: few people (outside tech circles) understand that a ⋮ signifies a submenu. It's a poor UX convention.
The edit action is probably the one most needed (certainly more frequently than 'Create Task'), so why not put this on the floating menu, rather than on the submenu? Maybe have the hover menu appear for a few seconds over a message after it's submitted so that people get to know it's there? Maybe consider replacing the ⋮ with a word (e.g. 'Actions')? Maybe allow people to customise the floating menu?
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