You could have responded nicely by telling the seller to sort it out before just deleteing them.
And the seller could’ve read the rules nicely before posting.
I take your point and appreciate that it might seem harsh on the face of it, but in all seriousness, that’s just not practical. If we entered into a dialogue with a poster over every rule infringement and got involved in manually tidying up everyone’s adverts because they couldn’t be arsed to read the guidelines, we’d achieve nothing of consequence and we’d have done nothing else all day.
On the rare times that a poster has asked nicely for a copy of the advert, it’s been provided. I don’t have figures to hand but it’s an insignificant number compared to the volume of posters who either respond with an apology or are rude about it.