When we search for a tag, it only gives the option to suggest a tag instead of allowing us to create that custom tag. It’s be way more efficient if in search engine side people look for a custom tag to what they desire out of it. And having one you can create right there and then, makes it an efficient method to find and be found by what you looking for.
By all means, give it a time for you to accept suck tag as you do revision and authorised pictures. But allow it to happen and it’ll make the app amazing to navigate.