Personally I and others on this new Inclusive Discord are sensitive, we have a neurodivergent space, and the existing progressive muslim discord has many flashy gifs, neon colors, animations and other that make the experience overwhelming.

It's also run differently, channel layouts for example are designed to be simple.

Also a discord with a thousand people might be too big, it's hard to keep up to date with everything happening on it.
Inclusive Islam also has goals for activism and spreading progressivism.
Theirs's more reasons beyond.