A Monday morning irk of mine… Surely people know the difference?
Bought - past tense of buy
Brought - past tense of bring
As a side note, where I now live in Scotland I have never come across anyone get this mixed up. Perhaps that’s why it irks me when I see it?!
YABU - They’re both very similar and easy to get them mixed up
YANBU - It looks/sounds completely ridiculous when people use ‘brought’ instead of bought