Datamining

Interpretation: “Only you can see this” identifies the visibility notice that only the author can see the removed-content placeholder.

Interpretation: “Your post was removed” identifies the post-level status saying that the author's post was removed.

Interpretation: “Your message was deleted in {channel}” identifies the notice naming the channel where the author's message was deleted.

Interpretation: “Your message was removed” identifies the general status saying that the author's message was removed.