LTNman
I'm afraid you're deluding yourself again.
The AMS and BFS routes are the only ones which are normally, but not always, lower than for the other London airports. All other routes are consistently similar to LTN and STN, with SEN's often being the highest.
It must be obvious to you that easyJet use lower fares at all their new bases initially to stimulate growth and to draw attention to their new offering. AMS and LTN will have a large business traffic element and that market is notoriously conservative so lower SEN fares serve as an incentive to try the new base. From the look of August's figures they seem to have been very successful in doing just that.
With reference to your earlier post concerning OLT Express Germany, I'm afraid you're whistling in the wind again. As for your comment about " a more recognized London airport (than SEN)", that situation is changing fast.