This is an inference error in statistics. Truth in this case
depends on the sample size of one's experience. The overwhelming
opinion here is that IJ girls are easy, based on the limited
observations of those who make such claims. But whether or not this
is borne out by a more scientific sampling remains to be
seen.
If you go by the 'no wind, no wave' argument, I can equally make
the claim that IJ girls are well-mannered, kind and virtuous, since
the overwhelming majority of the IJ girls that I know are like
that. In fact, I married one.
You guys who think otherwise are entitled to your opinions, but
please, back things up with more robust thinking if you want to
draw inferences from limited sample size.

obiterdicta