I don't really understand why a feature like text search is missing from the guild finder. I would just like to be able to do some searching when I have the time, write down the names and apply when I see fit. And it's not even like I can find these guilds again using the same parameters since every search looks random (which is understandable, every guild needs a chance, but makes less sense for the lack of text search).
I doubt there is a technical reason to this, so the only explanation I have is that you can't be sure if a given guild blacklisted you (if it doesn't appear when searching the specific name then you know you are blacklisted) and this way reducing toxic behaviour.
Yet I find such a feature would be very useful, let me know what you think.