Yes, please! This would be really helpful, say, in defending our cases or for finding threads where we can contribute or where our opinions, etc. may have relevance.
and if PC detects a username, it should auto-mention. Not sure how to get around usernames that are normal words, though (otherwise, someone named "the" would get mentioned soooo much lol), but maybe there's a "smart system" for that coded somewhere.
Otherwise, scratch it :v