Sure, but as I said elsewhere, it's still important that people point out that past the headline ("it's free") is that it is also malware (it spies on you). People were free to not use BonziBuddy as well, but it was rightfully characterized at the time as spyware. If the product also functioned as a proxy for botnet traffic, you wouldn't simply say "well you're free to not use it". You'd say "beware, the 'free' version is malware". Spyware is similar.

Posting to a public online forum is of course specifically making the post public.