I fully agree that people should stop doing that when making blogs, but you can hardly demand that people stop submitting interesting content just because said contact has been hijacked by hyperactive designers/service providers.
Boycotting a technology you don't like is ineffective unless it's monopolized and there a single provider on whom to focus the boycott efforts. Extensions that filter out such annoyances (like adblockers) are somewhat effective but result in arms races. Subversion through 3rd party tagging or the creation of other undesirable second-order effects seems like the best strategy. Perhaps someone with more technical knowledge could come up with better suggestions.
It's a valid problem, which I encourage you to consider, write up, and submit in its own right.
