I would prefer if my previous search was populated in the search box after completing a search (since I might want to try the search with a different filter).

I would prefer if my previous search was populated in the search box after completing a search (since I might want to try the search with a different filter). It appears you have an "off by one issue" in the sidebar. There's always a blank entry in the list of ignored sites. Filtering does not seem to be working (or I don't understand it). Searching on "chicken" produced the same results with 1million or 100k removed.