/f* commands do not just operate on binvars. For binvars, regex may not make [as much] sense, but for plaintext operations I see no problem.
Binvars maintain \n and \r charactes. Binvars maintain whitespace characters. Binvars don't have a length limit of 4KB. You can deal with files that are a mix of text and encoded binary. Occasionally non-encoded binary.
