The end user disables pixel cleaning because the pop-up annoys them. They then start bitching about burn-in within 6 months, RMA the monitor even though it was their choice to do so, and spread negative sentiment about your brand going forward for being "prone to burn in".
Cool story, bro.
..which then forces the manufacturers to develop better solutions - people who are annoyed by manual maintenance tasks or disruptions buy them - Not a bad scenario for both sides.