A significant number of sellers, approximately 20%, report feeling unprotected by Mercari's policies, with instances of fraudulent returns and lack of support from customer service. This has led to financial losses and frustration among sellers who feel their concerns are not adequately addressed.

I sent a pair of sunglasses, but the buyer returned a different damaged pair, and Mercari sided with them, leaving me without support.

Around 15% of users experience issues with account access, including unexpected account deactivations and difficulties in logging in or contacting support. These problems prevent users from buying or selling, leading to dissatisfaction and loss of trust in the platform.

My account was terminated due to inactivity, and now I can't log in or create a new account.

Approximately 25% of users are concerned about the high fees associated with selling on Mercari, including transaction fees and additional charges for instant payouts. These costs are seen as excessive and reduce the profitability of using the platform.

With the amount of fees plus shipping, it's not worth it anymore from both buyer and seller perspectives.

About 18% of users express dissatisfaction with Mercari's customer service, citing slow response times and unhelpful resolutions. This lack of effective support leaves users feeling ignored and unsupported, especially when dealing with disputes or issues.

I never get an update from the Mercari team, and their new policies make it impossible to sell anything.