In Statsig, the "Days since exposure" graph in the View Details section can be utilized to understand if an experiment is pulling forward an event. This graph displays the cumulative lift of a metric over time since a user's first exposure to an experiment. If you observe a significant lift immediately after exposure that diminishes over time, this could suggest that the experiment is pulling forward events.
However, it's important to note that there isn't a built-in tool specifically designed to identify pulled forward events. The closest feature available is a toggle in the top right of the scorecard that allows you to select “Days Since Exposure” instead of “Cumulative”. This feature enables you to look across all metrics inline.
Remember, the interpretation of the "Days since exposure" graph and the use of the toggle feature require a good understanding of your metrics and the potential impact of your experiments.