In this case, the respondent hasn't clarified what is wrong, thereby undermining his own request for a "sanity check".
I understand that, everyone is prone to the odd copy and paste error. All I ask is that a sanity check is done before moving on to the next event. In this example you should think to yourself “sales are jumping up and down, this is impossible, something is obviously wrong”.
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A category naming and shaming unreliable musicians.
A category reporting unscrupulous venues and traders.
A category exploring the issues faced working via agents.