MINEXMR did not indicate any specific reason for its decision to close the largest mining pool Monero. The announcement states that all miners using the pool must reconfigure their mining installations to another pool, namely p2pool, by August 12. And also that unpaid rewards will be sent automatically after closing the pool.
At the time of writing, the pool-controlled computing power is 1.04 GH/s, or 42% of the total, according to miningpoolstats, and there are almost 9,399 miners on the platform.
In February, the Monero community expressed concern that MINEXMR controls a significant part of the total hashrate of the network (about 44%), and called on miners to leave the pool so as not to jeopardize the decentralization of the network.
XMR is currently trading at $156.48, which is 0.34% and 7.27% more on the daily and weekly timeframes, respectively.