Nobody likes to be ignored.
But in
Instant Runoff Voting,
a correct algorithm that computes the winner always ignores (i.e. never looks at)
asymptotically 100% of
the entries in the rank-order votes.
Indeed, always, the algorithm looks at a fraction ≤F of the VC entries
(in a V-voter, C-candidate election) where

F ≤ (1+1/3+1/4+…+1/C) / C.

This upper bound tends to 0% when C is made large.

In contrast, with range,
approval, Borda, plurality, and Condorcet voting,
no correct algorithm can always avoid looking at 100% (or nearly) of the entries
in the votes. (However, it certainly can sometimes avoid it, e.g. if the first 51%
of the votes examined are all for Lincoln, then with plurality voting we'd know the winner
without needing to examine the remaining 49%.)

IRV voters have to ask themselves why they are being asked to fill out a rather large ballot
of rank orderings when in fact almost everything they write will always be ignored.