I totally agree with you that translation is the best way to get tokens from ICO projects. But not of all people can ability to translate the language. So, i think that Signature, facebook, and twitter are still worth to do.
Doing videos and writing articles is also a good way to get tokens from a campaign. It does not always happen that you are accepted into a translation campaign, so this option is the most optimal
Correct, there are a lot of project so if you have time and effort you can always maximize your earning.
The good thing is that you do not need to buy to invest, just earn and invest and you might be rich in the future just like investors
if you choose to hold precious tokens.