Check user message history
In streams where there can be as many as 10,000 people in one channel, chat at times can be difficult to moderate with so many messages being sent and keep track of user's behaviour. It would be helpful if mods or the streamer could click on a specific username in chat and see their message history. At times it may not be just for one message that may be ban worthy, but just for their attitude i.e. XxReApErxX has only ever chatted to comment on the streamer's bad gameplay. While one message may not be ban-worthy, if this was all they were doing, some channels may just decide to do so to improve the mood of the chatroom.
It's also useful if a user wanted to challenge a ban, they could point to their message history, and a moderator could reverse the ban if the user has for the most part been participating positively in chat. Or they could point out how the banned user has only thrown insults in chat or whatever they were doing that was against the rules of the channel.
You can just do it by going into a vod and finding the specific time a certain user last posted. But that takes guesswork and time, which frankly usually isn't worth the bother and takes attention away from the chat in the present. The method is already there but the UI just makes it tedious to do so and involves so much guesswork. It would be so useful for moderating if we could do this.
Any command to check $user last messages on chat?
Miguel Teirlinck commented
If you have Nightbot, you can see the logs of chat.