It's perfectly fine to use pixelation in the vast majority of scenarios where you are just trying to NOT draw attention to details that aren't part of your message. If someone gets nerd-sniped enough to actually sit down and spend a few hours deconvolving someone's name or email address, that's not the end of the world unless it's a very exceptional piece of information. Use your judgement.
In any case, manually blacking out rectangles to hide text looks ugly.
This is bizarre advice. If you care enough to redact information in an image which may linger on the internet forever, you probably care enough to want to do it properly. It's often going to be sensitive personal information like an address.
It's perfectly fine to use pixelation in the vast majority of scenarios where you are just trying to NOT draw attention to details that aren't part of your message. If someone gets nerd-sniped enough to actually sit down and spend a few hours deconvolving someone's name or email address, that's not the end of the world unless it's a very exceptional piece of information. Use your judgement.
In any case, manually blacking out rectangles to hide text looks ugly.