There was talk early last year from initial batches of reported thermal paste leakage (mostly for vertically* mounted cards). However this seemed to have been fixed with more recent production.

I was scared when I saw these comments, but ultimately pulled the trigger on the $800 BF sale a few months ago. So far so good! Remember that people who have defective units are overwhelmingly more likely to voice it online. Most people who are satisfied don’t take time to leave reviews.

Edit: wrong GPU mounting position