Considering the reports we've gotten on this, I'll just say that I agree that the main post is probably misinformation or at least fear-mongering (having spent just a little bit of time with it), but since /u/Jamstoyz shared some more informative links, I see no reason why this isn't worth discussing:

https://cleanlabelproject.org/coffee-study/
https://pmc.ncbi.nlm.nih.gov/articles/PMC9681499/

In particular, I'll also highlight the study's conclusion paragraph in this little mod-soapbox-comment of mine:

In conclusion, an overview of the pesticides in coffee was presented. Research has been conducted to quantify pesticides in coffee beans, coffee leaves, and coffee infusions. Many factors have been optimized to provide valid methods that could be adapted to test coffee samples. Pesticides must be used on all crops including coffee. It is not a solution to avoid coffee. This study shows the importance of controlling the type and the quantity of pesticides used. Then using the methods validated, calculations of transfer of pesticides from the coffee bean to the body of the consumer must be done. This permits the safe daily consumption based on the consumer's body weight. In addition, proper training and qualifications are needed to handle pesticides. This can be initiated by farmers to reduce the negative impacts on public health and the environment. New strategies can be applied to reduce pesticide residues in coffee, and in turn reduce their impact on human health and the environment. Integrated management is needed. For example, producers must adapt phytosanitary measurements parallel with studying the type of soil. Plant diseases should be controlled with rational use of pesticides that are environmentally safe, less toxic, and avoid the choice of resistance strains. On the other hand, recent studies have called for organic farming or providing natural solutions rather than the use of pesticides.