Need ability to pin messages in channels to the top especially for rules and application of the rules. What will be even more concerning as this gets bigger and larger is promotional spamming, links, NSFW content, scams etc happening in all of your groups. Need bots or ability for admin/moderators to come in and delete posts, suspend people, kick people out etc. Discord has bots. Also the ability to lock channels and only allow certain people in that channel, so channel specific. Easily gets rid of the entire purpose of slack at that point. Also please do not build it like slack where it's in a thread and the organization is an absolute mess. keep the flow of conversation easy to read and digest.