@Support Team:Thank you for clarifying the correct use of the budget prefix. However, (and I don't want to be pedantic about this), I did report this request thread and received the following reply:
Your recent report has been resolved: Post in thread 'budget: above $500 - WTB .com .net .org expiring domain from $1 to $5' - It appears the member has already edited the thread title at this time. Thank you for understanding.
So my understanding of this reply was that as long as the thread title contained the correct budget per domain, then the prefix could reflect the total budget, since even with a report this post still shows "Above $500" as the prefix.