Strong privacy and anonymity is important to preserve free speech against corporate domination.
If you don't get why strong privacy and anonymity is
important, but thinks that only those desiring that their privacy ought to be protected by technology rather than useless privacy policies, it's simply a matter on which we must agree to disagree.
The common claim that only those who have something (criminal or unsavery) to hide need strong private and anonymous communication is belied by the daily data breaches
even at big providers, and the shifting sands of social media giants' policies.
For instance, Facebook, Microsoft and other communications providers scan even privat chat messages for certain content.
Read these articles:
"Facebook just BANNED you from mentioning this website - and this is why"
!"Facebook Is Blocking an Upstart Rival—But It’s Complicated"
"Microsoft Monitors Skype More Closely Than Previously Believed: Report "
"Facebook is reading your private messages and blocks you if it doesn't like the link you send to your friends"
"Facebook just changed its mind about monitoring private messages"
(Actually they didn't in any legally enforceable way.)
If you use a big social media provider, you really don't have any strong claim to privacy or free speech, what you have is the speech and privacy rights the provider will tolerate, which might often be restricted by a very arbitrary, repressive and shifting policy.
Facebook for instance bans the url to the Pirate bay, even though mentioning that url is not illegal, and Microsoft and Google also automatically monitor content of chat and users'
Facebook, Google and Microsoft do that because they have a financial incentive, but extralegal and governmental pressure may also be an excuse for curbing free speech on social media.
A decentralized communications system like Bitmessage, Tor or I2P can aleviate that pressure by giving users back their right to their own data and grant them the power to speak without fear of social or private retaliation.
Of course, if you say or do something illegal, law enforcement may still expend substantial resources in tracking you down, but there should be no private corporate gatekeepers restricting free speech, only the laws enforced by the state.
I think that Facebook, Twitter and others are interesting and beneficial for innocent smalltalk, but there should be no illusion that you have any meaningful free speech or privacy when using these platforms.