[cosmicgadget]

Probably wrote "due to concerns about privacy" then realized it should be "due to privacy concerns" and forgot to remove the original bit.

Many such cases.

[antod]

I often do that frequently. I should do it, but forget to not fully proof read after a quick edit. I also regularly leave out n't a lot when changing where a negation happens (see above).

[crossroadsguy]

Definitely not using Apple's epic proofread feature.