Or just forcing yourself to keep an open mind about pain points for others. Make notes of the "quirks" when you notice them immediately, similarly any work around should be filed as a bug. That way even if you get used to it, you know it wasn't always the case.
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One of the problems of dogfooding is knowing when to stop. Because you could just get used to some of the quirks or find workarounds.
Or just forcing yourself to keep an open mind about pain points for others. Make notes of the "quirks" when you notice them immediately, similarly any work around should be filed as a bug. That way even if you get used to it, you know it wasn't always the case.