As someone who was in ops, I really disagree with MySQL in that category.
Saw it multiple times at multiple jobs just break on its own.
Most memorable one was a bug where certain pattern of data caused mysql think data is encrypted, crash and refused to start until data was restored from backup. It took quite time to fix it because it happened randomly and initially we assumed it was broken hardware.
MySQL used to be pretty bad in that respect but lately has come of age and I was mostly commenting on how frequently it was used.
I normally don't write about what I come across during my work, but in aggregate I can tell you that Redis, Linux and MySQL are the most common recurring elements across 150+ jobs looking at different companies, and using it rarely if ever leads to trouble.
So even if I don't use it myself directly quite a few of the companies we have invested in do, and an indirect 'thank you so much' is well deserved. I am very curious what it is that you will do next besides blogging. Linus had 'git' as his second major project, arguably it has had just as much effect on the world of free software as Linux did, you've definitely raised the bar for yourself :)
Much good luck!