You should know when to break a rule but only break it if you know why.
middle game tactics

Fork
Pin
Skewer
Discovered Attack
Discovered Check
Double Check
Zwischenzug (Intermezzo)
Deflection
Decoy
Overloading
Removal of the Defender
Attraction
Back Rank Tactic
Underpromotion
Trapped Piece
Quiet Move
Interference
Blockade
Desperado
Clearance
Clearance Sacrifice
Battery
Smothered Mate
Anastasia’s Mate
Boden’s Mate
Arabian Mate
Damiano’s Mate
Fool’s Mate
Scholar’s Mate
Perpetual Check
Stalemate Trap
Zugzwang
Windmill
X-ray Attack
Poisoned Pawn
Zwischenzug Check
Overpromotion
Undermining
Triangulation
King Hunt


how come I chomped on hanging pieces to 2400 then?
That's an empty, nonsensical phrase, that's how. Getting to 2400 requires a lot of chess knowledge, including a deep familiarity with tons of tactical patterns. To get there, a player needs many years of studying and practicing chess.

chess.com/forum/view/general/proof-that-chomping-on-hanging-pieces-will-get-you-to-2400-blitz
how come I've posted plenty of proof that people will just hang pieces then?
to take is a mistake