It’s safer not having the clips if you’re benching on your own without safeties (I don’t do that personally though). When doing deadlift warm-up sets sometimes I don’t bother with the clips.
But putting the weights away and generally tidying up after yourself – I don’t understand why so many people are so bad at that? Don’t they find it annoying to find a bar racked with a loads of weight on it, so you don’t know if someone is in the midst of something? And doesn’t anyone who isn’t clueless always start with an empty bar for their warm-up sets?