almost all trading in waves dex are wash trading.
I kind of suspect this is true as well! (Wash trading meaning you buy/sell to yourself to create fake volume)
Unlike other exchanges though, all trades on the DEX are on the blockchain, so it's possible to decode the to/from addresses from the transaction data. In other words, this theory could be proven easily. Who wants to know what % of trades on the DEX are wash trading?

3PCimbveKEQACLMMxtzKeW4T48V3diUpghG
3PGaVDYAZ4FvDxTQuCi26BHam8dZJPQS9he
3PPT7zKXghtQzm5SzuhNvdxKX87aPmHQV15
these addresses are some examples for wash trading. they buy from each other and then sell immediately.
you can check any pair here, just change ZEC/BTC to what pair you want to see.
https://marketdata.wavesplatform.com/api/trades/ZEC/BTC/100