Question about Sklansky's "folding for one more bet" concept in 7CSFAP

[Wilson]

i did it 20mins ago... low limit... a 7,9,9,A folded to me and i got frisky (pretty ambitious/stupid at this table) with (98)T 2 flush into 2,6,6. the nitty guy with the 6 reraised and i folded.

btw, in limit hold'em, if u had a right to get in the pot in the first place ur pretty much neva enuff of a dog to fold for one more small bet preflop.