I've become convinced that at 10nl, the flop min-bet (either donk or from position) is a HUGE for sale sign on the pot. Example. We have a MP poster (both SB and BB), and both blinds fold to steals (SB ~ 80% over 800 hands, BB ~ 70% over 200 hands). No doubt 32s is not my normal blind stealing hand, but it has a hint of value.

$0.05/$0.1 No Limit Holdem
6 players
Converted at weaktight.com

Stacks:
UTG ($7.64)
UTG 1 ($7.01)
CO ($9.69)
Hero ($11.00)
SB ($14.79)
BB ($8.54)
[UTG 1 posted $0.15]

Pre-flop: ($0.30, 6 players) Hero is BTN
1 fold, UTG 1 checks, 1 fold, Hero raises to $0.50, 2 folds, UTG 1 calls $0.35

Flop: ($1.15, 2 players)
UTG 1 bets $0.10, Hero raises to $1.05

I was done with the hand until the min-bet. I raise these min-bets about the size of the original pot virtually time - and with air - at least 90% of the time I get a fold.