I didn't get a chance to create a separate thread for this, but I released a new feature several days ago which will hopefully help fight spam (for those of you experiencing this).

Basically the system will lock out users from being able to make fast, successive posts. You will need to enable this feature by going to Settings within the dashboard.

You can read more about this here: https://getchamp.myshopify.com/community/champ/forums/7-support/topics/7845-planned-champ-features-last-updated-july-2019

Here's a screenshot of what the user sees as they wait for the time limit to be lifted:

Screenshot 2019-07-04 13.59.39.png