Well, I supposed I could write a Twitter client that checked links and marked tweets as spam before presenting them to the user. Sorry, it's my nature to try a

Well, I supposed I could write a Twitter client that checked links and marked tweets as spam before presenting them to the user. Sorry, it's my nature to try and solve problems working around whatever obstacles are in the way. So when your post made me think, well.... I could... In no way mocking or disagreeing with your opinion which I do comprehend and for a large part agree with. On the same token I also think a truly open system, while not impossible, is a difficult proposition for financial reasons. Also from a security stand point. If the system was open enough for me to solve the spam problem, then it would also be open enough to make the spam problem, or even virus/malware delivery much easier.