Vuffy - 10:11 am on Oct 1, 2012 (gmt 0) [edited by: Vuffy at 10:13 am (utc) on Oct 1, 2012]
Highly doubt it. I don't have any hard facts, but I have good faith that a big portion of sites use this type of URL structure for their pages.
If that was the case, the entire Internet would be in an uproar. Escaping panda doesn't automatically make a site high quality, there's still a big discrepancy about false positives.
Perhaps pages linking to you were demoted from this algo change, thus not sending as much juice.
[edited by: Vuffy at 10:13 am (utc) on Oct 1, 2012]