Clikes are a method of promoting that costs the giver, a bit like reddit gold. It may or may not do anything more than let people know that someone thought very highly of something, and people can choose how this effects the visibility of posts. It's not necessary, but could be interesting.
I never mentioned the government.
Yougov is a polling company who might want to put their product (data) in places that people find interesting and useful so they can get more value from their data & get more people looking at it. It could be good for their business, and is just one example.
Governments may also want to do something with it if it's useful to them & appealing to their electorate / subjects. Nobody can ban specific groups of people from using the Safe network, and this means people can't ban governments. I can think of some reasons why Safe based products and services could be useful to governments, and this would in no way diminish the value of the network for individuals as anonymous and private.
Are you serious? Imagine (if it doesn't hurt your brain too much) you were reading an article, and you wanted to look at discussions relating to that specific article, or see other articles that people have noted as related, or see poll results that show how popular certain points of view relating to specific article are. That kind of data can add an interesting dynamic & depth to someone's experience of reading articles online.
Doing this on Safe would make it impossible for any censorship, which is better than doing it only on the normal internet.
Imagine an article in China about something politically sensitive, but approved by the party to be on the internet, as it gives an approved account of events. Then, people with this Safe based pluggin can see links to alternative views on the same story, and polls from around the world showing what people in different countries think about it, and nobody can stop this (in theory).
These are just examples that hopefully creative people can take further, and if the tools are made available, people could find all kinds of uses for.
Can you think of any examples of how this kind of context based, censorship resistant linking of information to URLs on the internet could be useful or interesting?