"Bad example" follows established guidelines about ue5-style-guide HOT 3 OPEN

"Target" can be a verb or noun hence the ambiguity. OnTargetting or OnBeginTarget would eliminate the ambiguity.

from ue5-style-guide.

Think of a function named "OnJumping". Does that happen when jump started, or when it ended, or every frame while jumping? Of course, we could write "OnBeginJump", at which point we've landed on shortening it to simply "OnJump", which we can all agree follows the established guidelines.

Jump is also a noun.

The two first "good examples" are also nouns:

OnDeath
OnPickup

This leads me to believe that "OnTarget" is mistakenly listed as a "bad example", not that the whole category is incorrect.

from ue5-style-guide.

Jump is an action, Target is not.
I agree that it's a bad "bad example" but only the fact that we have this conversation illustrate that function names don't have to be ambiguous.

from ue5-style-guide.