I'm not gonna call for a deprecation for this one because I think the tag can be salvaged, if a consensus for its definition can be reached. The mind_break wiki defines it as characters changing their view on sex, usually after rape. In practice, however, it's used for a variety of content which makes it of little use. Some examples:
- Loss of reason after sex, usually indicated by ahegao and/or heart-shaped pupils (examples post #3828831, post #3903835)
- Being left traumatized and hurt after a rape (examples: post #2107049, post #2439700)
- The wiki definition, loss of prudishness after rape, followed by expressing a desire for more (examples: post #7055045, post #3655632)
- Various forms of mind control (examples: post #4117831, post #2868508)
- The comedic take, in which a character makes an ahegao-like face or v signs to show being mentally defeated (examples: post #2360042, post #6021704)
- At least one instance of actual brain damage (post #3948005)
Most pics with the tag don't even fit into the above categories, and are just random images of characters looking pleasured after sex. I think the first and third items are the ones that people associate the most with the term "mind break", but the first could just be found by searching ahegao+heart-shaped pupils. The second item might also be redudant with the after rape tag.