Generally do, in the L1011.
Not +10 however, plus eight.
Not just after start however, on the parallel just before (or after) extending flaps.
And no, doing everything before taxiing is not my idea of how it should be done, unless the intended taxi route is very short.
Why do I use engine anti-ice?
Because it's there to be used.
However, if the visibility is reduced, on it goes just after start.
Seems prudent to me.