It seems like I'm always being asked to sign petitions for this, that, or the other cause on social media. I always refuse, and in a Dec. 3 posting the political website The Daily Kos provided an excellent explanation of why: "Petitions are sign-up forms for your organization. They are a way to build a contact list of like-minded people, so that you can send those people emails with more impactful actions on related topics at a later date."
In other words, you might think you're just lending support to a single good cause championed by a friend, but what you're really doing is adding your name to a mailing list and asking for an avalanche of emails. No thanks!