[missedthecue]

I think people combine leery and wary in their mind and end up with weary, which they don't intend. I see it a lot.

In the case of the parent comment however, weary does work.

[whamlastxmas]

The rare occasion that it does work both ways

[nerdponx]

And/or they've seen the word "weary" and assume it's pronounced like "wary", so they spell the word "wary" as "weary".

[smcl]

This is it - if you hear the word "wary" and know the verb "to wear" before encountering the written word "weary" it's totally understandable to assume that is how "wary" is written and to mix them up.

What I wanted to do with my comment is show this without coming across as a mean or pedantic - especially since in the context both work ok. I've no idea if I accomplished that, I probably come across as a dick but I hope I don't.