Enough privileges to compose a reply, but not to submit it.
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I have no idea how I produced this, but I somehow managed to be in a state of having active quote and reply buttons and a working compose panel, while not actually being logged in (in this tab).
And no, I didn't logout in another tab. That would explain it.
On the contrary, I logged in in another tab.
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Incidently, I hate saying "logged in". But "loginned" is worse.
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Permissions aren't refreshed for the.... Yeah, no real idea. Want an imaginary one instead?
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I'd guess that the authentication stuff only runs once per websocket and because page loads aren't through a websocket, the button showed up even though you were connected as a guest.
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Boom.
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Failure to properly check your privilege? See, that never happens on Tumblr.
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