That was a pure mistake by DD. They were making btc rain by bot every 3 hours 10k sats each to 10 user. 1 week ago they have update it and started making rain in XRP. 1 xrp byn bot every 3 hours randomly 10 user at EN room. N.B:: Don't know about other language room.
Yesterday they started XLM rain. 3.13 XLM to each 10 user. DD testing those alt coin rain actually. Before that bot always made xlm rain. And the BIG 3.13 BTC rain to each 10 user at EN room was a big mistake by the bot. And the same way other room user also got rain. That's a huge bug there for sure. Some user also made withdraw from it. Hope everything will fixed soon