Is it acceptable to use proprietary software (platforms) to promote software freedom?

[Daniel Pocock]

On 26/07/17 15:46, Adonay Felipe Nogueira wrote:
> About this phrase:
> 
> "Are there any services we list which don't work with Free Software?"
> 
> I would extend it to:
> 
> "Does they make the visitor/guest/user use non-free software through
> JavaScript?"
> 
> If the answer to the above question is "yes", then mark the button with
> a special color or symbol, with a nearby note on the issues. No need to
> entirely block/remove the button, just mark it specially. I think even
> the FSF does this if one clicks the "Syndicate" links in each blog
> publication.


Why not put the buttons in separate groups, e.g. Facebook and Google
under a heading "CIA approved industry partners"?