Sometimes clicking on the title of a post on the main page takes you directly to an external website. I find this to be risky. I try to avoid clicking on these but don't always see the little "external link" icon. For this reason, I think clicking on a title should ALWAYS take you into the post. Or at least give users a setting to control this behavior for themselves. Until such a setting can be implemented, please, let's remove this direct external link behavior.
Also, generally speaking, when a post has a link (even if you aren't taken to it directly by clicking on the title), it would be nice if there was some indication that the post might be spam. For example, there could be a visible indication that the post has received downvotes...especially if the downvotes outnumber (and/or outweigh) the upvotes.