Would be great to see more data from this research to understand the scale of the effect and quality of analysis. How long the measurements have been performed?

Would be great to see more data from this research to understand the scale of the effect and quality of analysis. How long the measurements have been performed? Was there direct causal link between the tweet from bot and reduction of the number of racial slurs? Were there any other events that could influence the research, e.g. a hot topic that could consume most of the attention of the subjects? Was there reduction in the number of hate speech tweets at all or the subjects just switched to the milder language? How big is the effect in relative numbers?