Verbs that take no preposition (consider, infringe, commiserate) are frequently given a needless one by the same hidden influence of a synonym. ‘Infringe’ (your rights) suggests ‘encroach’ (upon) and out comes ‘infringe upon’. ‘Consider’ suggests ‘regard,’ which needs ‘as.’ If you are tempted to say, “I consider you as a fool,” remember that you are applying the epithet to yourself.
-Jacques Barzun, Simple & Direct, p. 62
This one has a sharp edge at its end.