[Feat Req.] Handle chat x% identical chat messages

[kashalls]

In the event that a user joins a guild and asks the same or very likely the same question in several channels, limit messages to their original message and remove the additional ones.

This should only occur if a user posts the same question in different channels within a 2-3 minute lifespan, as usually someone will tell them to post it in the right channel shortly afterwards.

How to detect:

Baseline, you split the message string into an array of strings, count the entries and compare additional messages using threshold math. You can use redis to expire keys after x length if you need to.

[tyzbit]

Additional functionality: analyze words and phrases that are highly likely to be present on spam/rulebreaking messages like "hey team" or messages that contain hate speech.