It's easy to point fingers at the biggest company in the space. It's easy to criticize a company that gets so much traffic that its servers go down.
But then there's also such a thing as doing the necessary work required to earn an opinion. From this lens, we've yet to see someone who both criticizes OpenSea and has also put in the work to have an opinion.
Marc Andreessen described this phenomenon really well:
Our space is still so young. There are many bright days ahead, and the pie is only going to grow. There are far better things to do than write up treatises on medium about why you think OpenSea should be doing something differently.
Instead of criticizing, ask yourself: what are you going to build to push the space forward?