Never ever can anyone get banned from the forum for plagiarism if you provide the link to the information or the article shared,most times some users instead of just cropping out a little part of the article and then support it with the full link, go ahead to write out the whole article verbatim,but just with a single link at the end, they get saved from the axe
I haven't come across the issue you've mentioned,but if you have, it's best to let us see it, the rules are always available and you can read it up,without having to ask us some unnecessary questions