Do we ever use red/orange/yellow filters shooting digital B&W?

Trying an IR filter is a good choice (I just got one myself, and I love it).

There was another thread linked that gave this advice "IMO it makes more sense to keep all the information that the sensor records and apply the filter in post where you have complete control over the filter's color and density." This is wrong, because the sensor throws away the spectral output of the subject, an entire continuous function, and only retains three scalar values. The near-IR filter is a good example of where a physical filter can differentiate certain reds (near-IR) from other reds (visible red). Shooting without a filter, the camera's red channel records a single value for all the light that comes in across these frequencies, and you can't recover the frequencies once the shot has been taken.