People spend real money to try to level up by buying more coins and getting more EXP, and have a goal such as having to reach a certain level by a certain date.
viewtopic.php?t=101229
https://talk.hyipinvest.net/threads/262307/
https://mmomakemoneyonline.net/threads/ ... na.494905/
http://sharecovid19story.com/viewtopic.php?t=2770594
http://oldsite.giessen46ers.de/fantalk/ ... 9&t=189016
https://ebagcilar.com/forum/index.php?t ... 82.new#new
https://mmomakemoneyonline.net/threads/ ... na.444087/
https://mliia.com/thread-357247-1-1.html
http://forum.arduionly.com.au/showthread.php?tid=77957
https://ufr-2020.front5.picapo.net/foru ... pid=410280
https://debate.socialism.nl/forum/showt ... tid=140576
http://forum.bandingklub.cz/viewtopic.p ... &t=1128674
https://gravatar.com/butteryzanye90514ac72
http://horsecity.ru/phpBB3/viewtopic.php?f=16&t=221900
https://forum.zweb-apps.xyz/viewtopic.php?t=6665