Since eBay have allowed I think it's 500 characters max now for feedback, I agree some are essay style, and some you may have noticed are AI composed feedback too:
Starting late April, automated positive feedback will be added to your feedback profile 7 days after tracking confirms successful delivery, provided the following criteria are met:
- Tracking shows the item was delivered on time
- The buyer hasn’t left feedback yet
- The buyer hasn't reported an issue or opened a return on their order.
I'm with you on leaving short succinct feedback, I believe though that some seeing the ' instruction' to leave more feedback, carry on and essays appear!
@gwjohnston