"I can't find the "messages" page." -> If you mean the replies page,it's not there just yet,you'll have to wait.
"Is there a concrete explanation of Level?" Was on group chat a while ago
Can't answer anything else,+1 for the UI being somewhat uncomfortable.
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The post explaining levels isn't up yet, but if it hasn't changed to much from the beta:
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General things I've noticed, mostly UI stuff:
Thanks!
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