Having nothing to hide is fine. Nothing to hide and doing nothing wrong is least likely to cause trouble.
The blog post’s argument that someone would be more likely to get watched if they start hiding after not hiding is not valid. ALL encrypted and unencrypted communication is a valid target for analysis, but ANY encrypted traffic is obviously more of a concern, just like one person walking into a store brandishing a gun is as alarming as 5 brandishing guns, and it doesn’t matter whether they used to not carry guns into the store.