jokertan

Yeah, so this is a spam account.

While the name "jokertan" is used by several real accounts, mostly from Japan, there are a few that have the same lower-case spelling, and all tie together with a common signature link for instantonline-loan.com.

They also share the same avatar pic of the Joker from Suicide Squad.

https://stitchitintl.com/support-forum/activity/jokertan/  for example.
https://www.ethicalhacker.net/members/jokertan/ same account, same blank content.
https://sv.termwiki.com/User/jokertan
https://beta.inputmapper.com/forum/activity/jokertan/
https://spn.go.th/community/profile/jokertan/ here's one with the intact signature embedded with a link to that online loan site
https://coalitionjournal2018.lmu.build/profile/jokertan/ oh look, the identical sig with link on a completely unrelated forum

Please nuke spambot account.