I got reports on this. I'm personally not of a mind to remove it, but it does feel irrelevant to open source. It's more a Linux sysadmin type thing.
I will say, cut down the spam. Any repeated similar musings within a week would be low value and I'd probably remove.
I personally don't agree with this and this wouldn't be relevant to most peoples risk profile.
Worth reflecting on what others have said here. I think you're worrying too much about something that will never be expolitable in standard usage and this is from someone who worries a lot about privacy.
Maybe if this is really important to you check out Tails OS which as far as I'm aware focusses on running in RAM and leaving minimal persistent state.