Of course you are right, and that is exactly why I was wrong not to see it coming. How often does one have to admit being wrong about something? Apparently it is wrong to trust any service that embeds itself on your webpage over the longer term, lesson learned. 3rd party javascript is now on my list of 'things to avoid', now I have to wonder whether I want those social media bits & pieces on there and what could be the impact of leaving them there.
I'd be very surprised if a twitter button suddenly turned into an advertisement but apparently that would be business as usual.
@jacquesm, in the case of a twitter button, or FB like button, those can usually be removed without significant impact to the overall user experience. A Disqus commenting engine is not as easily removed/replaced, especially given the potential loss of previously generated content. I guess it comes down whether the third party service is a core feature of your site/product.
I didn't post it to taunt you, I posted it as a response to the GP. I think that your point about the meme still stands fine, regardless of having to throw out some services that misuse your trust.
That said, I think you're overreacting. Fair enough that you feel screwed by Discus, but making the leap that you can never have any third party javascript because they might screw you in the future is a bit much, I think. At some point you'll have to trust someone.
Silly me, I guess I should have seen it coming.