#plats­ki says. You should nev­er see a con­fir­ma­tion dia­log any­where. A pro­gram­mer who shows one should not be in user inter­face busi­ness.

#plats­ki says: An appli­ca­tion with Undo capa­bil­i­ty becomes explorable, not fright­en­ing. Fail­ure to imple­ment it prop­er­ly is a mor­tal sin.