The "Skinned only" part usually means the list has been filtered or "checked" to only include accounts that actually have or premium items, making them more valuable to certain players or collectors.
Hackers use these lists to automatically try thousands of logins on different games or platforms.
Accounts with "skins" are often sold on gray-market forums, which is why these specific lists are highly sought after by bad actors.
Don't let years of grinding go to waste. If you haven't updated your security lately, now is the time. Don't be the next "skinned" account on a text file! Why this matters
Use sites like Have I Been Pwned to see if your email is in a known breach. 🎮 For Gaming Communities A more casual way to discuss the topic.