yep like the title says, it really disapointing to see lvl 200 players attacking a lvl 100 tower wichever side of the conflict you are on, besides being somethng that isn't supposed able to happen.
There was the old team with a lower player "gank-orama" fests where many coweradly titles where earned, this is no better and although the 'exact' mechanics are unclear, lvl 200 players attacking a lvl 100 tower is clearley an exploit.
As far as know a GM is looking at this, and hopefully we can expect some fixes.
Peace
cal