I think a sticky on stocking would be great.
I also think there should be a sticky on this page for beginners that screams the need to cycle your new tank before adding fish, and that gives very basic rules for cycling.
I would include in these rules the need to use chlorine and chloramine remover and the advisability of avoiding other chemicals like pH adjusters.
I would also clearly state the levels of ammonia and nitrite above which people should do partial water changes if they are cycling with fish. When I was new and came to this site, I remember having to search around to find the levels, which weren't clearly stated in the article on cycling. The levels are important for people to know even if they do fishless cycling, because they will certainly encounter the ammonia problem at some point in fishkeeping.
I think beginners who come to the site would really benefit from a bare-bones getting started sticky like that.