Thank you for your reply. I was speaking of the website rather than the desktop app. All the people that need help unzipping a game are on Steam. ;)
I disagree, multiple tag exclusions will be very useful, and so would its sister feature, an option of viewing by multiple tag inclusions. The way we cope with the absence of these features is to ask for it to be implemented, because that would seem to be the way forward. We ask for it because we need it. Aren't you tired of writing these long paragraphs of theories about why it might not be useful? This feature's benefits are already more than you imagine. :D