Starting from nowhere selling directly ANY kind of coins - in-game gold, coins, etc. for various online games = 100% red flag = ban.
You must start something ELSE in the beginning and after 6 months to list your FIRST few (1-5) coins-listings, this is some kind of strategy. And then continue to list. Of course you must be till then Top-rated Plus / Premium Listing (don't list on .COM, tho).
Big Chinese/HKish sellers are selling digital goods for since, some of them already 10 years. I bet they haven't started directly with those, tho. Keep in mind that they're registered through eB.com.hk and eB.cn, so those accs have diff. regulations, diff. phone support/reps, etc. (maybe that's the key?).
Of course do such experiments with professionally created Stealth eB/PP accs, for sure.