Good reply, but why rush to label potential replies as confirmation bias? That simply makes your reply more subjectively problematic. For all we know, the causation is really there. We just have no idea, for the exact reasons you've posted. It's ok to throw potential causes around.

The leverage point in a reply like yours is in getting people to interpret those replies with more clarity, which should not be confused with getting people to label a bunch of personal anecdotes as confirmation bias.

I might recommend using a word more specific than "problematic" if your goal is to communicate your criticism. It's about as specific as "bad", and seems to form an in-group out-group dynamic for readers who get to fill in the gaps.

I agree with your point, so I've read your comment as "it makes your reply more biased than necessary", whereas people who disagree with you might read it as "I don't like your reply because it hurts my feelings" or some other uncharitable interpretation.

Hope this came across as a friendly recommendation! Communicating over text has so many pitfalls.

Confirmation bias looks like on-topic content, and often spurs copycat posts that look like engagement. It's one of the faster ways of growing the number next to your user name in the upper right, which causes a dopamine release in most users.

Considering that insomnia is a common symptom of depression, this really shouldn't be remotely surprising

Edit: I'd bet you'd find a similar correlation with students that sleep more than 12 hours a day too

The inability to _want_ to do anything or _care_ often isn't a conscious choice.