Why do I bother making blocking bets?

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...If I'm just going to call their raises anyway. If I can beat these games, it doesn't say too much for the 90% who can't.

Party $50NL 6-max. Villain has been at the table for three hands so I don't have much of a read. I'm UTG+1 with AKo, villain is button.

UTG limps, hero raises to $2.50, folded to villain, villain calls $2.50, blinds fold, UTG calls $2

flop-K68r UTG checks, hero bets $5,villain calls $5,UTG folds

turn-7 (suit unimportant) hero checks, villain checks

river T hero bets $8,villain raises to $16,hero calls $8

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