Thank you for this post. I yell at my screen each time I have to use leboncoin.

It was super ugly, but it did the job. Now it's super ugly, but it steals my focus at every opportunity, refreshes parts of the UI I'm about to click, or has select inputs that love to play hide and seek with my cursor. It's a UX nightmare.

I must say their new payment system is nice. But boy do we have to suffer when looking for something to buy now.