Even so, there are people who use it as a function of searching. Including one of my friends on Discord. A real life example was of them trying to look for Freddie Pink's page, only for it to be listed under W for Winifred, even though she is hardly ever called that in show. It would've been a whole lot easier for it to just be listed under P for Pink.
And as for the title, like I said, it is very rare for this to be a way of categorizing. Even the default categorizing in my phone doesn't organize people by title, because things just get confusing if you have a million "mr"s or "dr"s. I'm just saying, it's not an ideal way.