This is just something cool to have on survival in my opinion. As there's buycraft rewards for survival it would be cool for it to be announced in chat when someone overtakes another in baltop and mcmmomonthly top (quest top could be quite spammy when quests reset). Such message could be something like: "[Announcement]: Player X has just taken baltop #2 with a balance of $1,234,567.89!" This could be abused with paying ur friend, then announcing it then paying back etc but that could be punished easily and baltop only updates when someone does /baltop and theres a cooldown for it updating.
baltop will rarely update so its cool to have an announcement when it does, same goes for mcmmomonthly (unless its the start of the month), quest top will update frequently thats why i suggested not to for that. baltop has changed once this month
well i assume you're talking about just the top 1-3 changing and not 1-10 in that case? sure i'll sneak it in without kinsey even knowing hehe can't say if baltop will get this feature or not.
I've added this feature to quests and monthlymcmmo for the top #3 changes (anytime they go up and differ from the previous leaderboard checks). I'll have kinsey put out those jars later. If you wish to keep this up for baltop.. I might do it one day but currently it's not on my todo list.