I don't see how you can possibly get "you can advertise in all places as long as you don't link your eBay sale in the forum." from those sentences. It's just impossible.
People are x-posting ads and then making up bullshit about not understanding, what in clear English says, don't post your shit here and on other forums.
Wicksie's point isn't that it is unclear per se, but that it needs to be clearer. I think she has a point. It's a bit like the language of contracts--it's a science all by itself how you avoid it being misinterpreted and full of loopholes, and of course there is constant court action about such misinterpretations. You, she, and I wouldn't misinterpret it, but other people read this sort of thing casually and without paying proper attention.
Wicksie's point isn't that it is unclear per se, but that it needs to be clearer. I think she has a point. It's a bit like the language of contracts--it's a science all by itself how you avoid it being misinterpreted and full of loopholes, and of course there is constant court action about such misinterpretations. You, she, and I wouldn't misinterpret it, but other people read this sort of thing casually and without paying proper attention.