folks who run #pihole: have you ever had a site or app break as a result of using pihole?
(for the purposes of this question, "break" includes having to perform any kind of workaround, not just a fully blocking break)
@gsuberland It really depends on which blocklists you use. There are different levels of lists. Most people should use normal ones. Advanced/extreme lists often need whitelisting domains in the first week or so.