Their place
Adding custom pictogram to the chat tool is the process of introducing "their favorite toy" and making it "their playground" Tools that can't do that don't give you a "Their place" feeling. If we don't feel like it's our place, we don't feel like visiting or maintaining it from time to time.
I think metaverse and others will go out of business if users can't easily customize them, because they don't feel like it's their place. ---
This page is auto-translated from /nishio/自分たちの場 using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.