It's probably been mentioned before (but a forum search of "map edge" brought nothing pertinent up): edge of map behavior combined with obstacles on the edges of map (such as the towering wreckage on the edge of Duel at Dawn or Canyon Ambush) can be jarring, particularly for new players in those areas, since without knowing the particular edge of map behavior (it's not necessarily obvious without large points of reference), it's rather easy to be forced into ramming an obstacle, even without enemy assistance.
Unless this is an intentional effect, it'd be ideal for maps to not have free-standing edge-of-map obstacles (ridges and other smooth terrain that don't intersect a map border wouldn't be such a big deal, since any collision with it would have been a result of the "natural" physics). Perhaps this could be achieved by shrinking or extending map borders so that any ship could slide past these obstacles if the edge-of-map effect comes into play.
