I think you are all being a little bit too harsh. Its a tech question in a tech forum. Albeit from someone outside the industry (im guessing).
The answer is, unless your operator has a policy of using reverse idle (i.e. opening the reverser doors but not using any power, most airlines will promptly select reverse after touchdown, then continue to use it until reaching a certain speed. Usually from 100kts down to latest taxy speed.
At STN, RYR policy is to use idle reverse on the last flight of the day.