Filtering is not nearly powerful enough

I’m given to understand that filtering was switched from regex to simple word/phrase matching in order to make it more accessible to users. That’s fine and good, but removing regex completely with no way to turn it back on is stamping out flexibility in exchange for accessibility. Word/phrase matching is not powerful enough to ACTUALLY filter out content you don’t want to see (especially since the “whole word” checkbox doesn’t appear to work! but that may just be the instance I’m on).

I’d really like to see regex filtering make a return as an optional feature.