Instead of immunizing using the disambiguator, would it not be great to be able to add ‘exceptions’ to the spell checker in a datafile?
Of course, there is ignore.txt which does that for a single token, but maybe it could be expanded to multiple tokens, like:
nota bene , which means bene is accepted when in this combination, but not otherwise. There are a lot of fixed expressions. Of ocurse, the same can be achieved by making a list yourself, and generate disambiguator rules. But this seems more ‘clean’ to me.