Web development:
I'm honestly happy that my toxic "senior" colleague is gone.
- Didnt learn a single thing in the last 10 years. Used godamn serverside rendering with Jquery / plain JS for a highly interactive business Web Application. Yeah boii, save that UI state in the relational database, good job.
- Every error in his shit was the error of someone else.
- Manipulative as hell. Type of guy that is your best buddy to gather information.
- Blocked entire technical progress in the Web department by manipulating people. Understandable. I mean if your legacy shit is gone...
- Kept backend developers from doing their job with unjustified complaints about structures... etc to justify that he needed an insane amount of time to implement simple things.
- Cried for every shit to be documented to the last bits. Did never do any documentation himself.

Fuck these people, honestly.