Rarely ever. It's more along the lines of - I have a huge attachment and it doesn't display. Then the settings is too ristrictive. I guess it's something to fine-tune (though I don't like the "tuning"-term a lot because it sounds like you are constantly on the edge and just avoid falling over by adjusting a setting).
This is why offering professional services supporting open source has a market, and how some open source projects can generate revenue. :-)
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