<...> There's no need giving a summary to a topic you know nothing about, preferable just ignore such topic and move on to the next discussion on the board.
I understand your difference(if I can call it that), but let me expound exactly what other users have been saying in this thread(i stand to be corrected).
If it's for instance, a reply to a post, maybe a user seeking help, information, news, something about the forums history etc ; it can be understandable to surf for suitable information for such users and simply posting the links, or another thread in the forum(asking them to read it for more understanding), or extracting a quote or an excerpt of a thread were maybe theymos clarified other users on that issue. If it's in situations like this, maybe further explanations may be unnecessary and beating a dead horse. But I think if a user is to
start a thread based on a link that they've come across, it's necessary for them to read and understand what the topic in the link or article is all about, it's criminal to do either "A" or "B" of what Ddmr Ddmr posted above in the name of not fully understanding the article or the news link.
Starting a thread is like beginning a discussion, one users should readily be available to partake in, just posting a link, or copying the article verbatim in a
new thread is foul play, because definitely such "thread starters" wouldn't come back to the thread again.