Is it possible somehow in formum settings change my usernname?
Yes, this URL → https://forums.meteor.com/u/nodsec/preferences/username
It was rocket speed answer 
Thanks a lot.
@hschmaiske …probably is disbled or some error:
Which username do you want? I can try changing here
I want to setup new username: klaucode
It’s done 
@klaucode
yess, I see error 404 During this time I’m watching your Digital nomad’s Twitter
Thanks a lot again 