> Thus losing the ability to tell if I mistyped \(oq as \(cq with -Tascii > or -Tlatin1?
To be fair, -Tascii and -Tlatin1 already lack the ability to distinguish \(lq from \(rq -- and \(fo from \(la, and several others (far more in -Tascii, of course). Currently, \(ga and \(oq render the same. Under Ingo's proposed change, \(oq and \(cq would render the same. Either way, you're losing information. (This is a limitation imposed by the character sets themselves: groff can produce more than 128 or 256 output glyphs.) And while you're more likely to mistype "oq" than "ga" for "cq," it seems that distinguishing such characters is a use case outside the intent of -Tascii and -Tlatin1. These flags are, in a philosophical sense, flags for reading, not for editing. For terminal output to aid editing/proofreading, -a is a better fit, as it produces a unique string for every glyph.