Does anyone know the reason?
The only risk is that if the delisting happens, then the price of XEM will finally slide close to zero. Now it costs only $0.03.
Here's what I was able to google:
"Fellow Binancians,
Binance will remove and cease trading on the following trading pairs at 2022-11-28 03:00 (UTC):
Spot Pairs: ARK/BTC, BEAM/BTC, BTCST/BTC, BTCST/USDT, GTO/BTC, GTO/USDT, MITH/BTC, MITH/BNB, PERL/BTC, PNT/BTC, REP/BTC, SRM/BNB, SRM/BTC, SRM/USDT, TRIBE/USDT, XEM/BTC".
Source: https://www.binance.com/en/support/announcement/notice-of-removal-of-trading-pairs-2022-11-28-f88299165488493cba3e53208c19080d
This appears to be true, but without giving reasons for the delisting.
Reason is probably due to low volume.. at least the XEM/USDT pair is still there.