User talk:2A01:CB19:8DBF:FE00:FC7C:B2A8:51EE:C3D5

February 2021
Please stop your disruptive editing. If you continue to add inappropriate external links to Wikipedia, as you did at Lorentz transformation‎, you may be blocked from editing. It is considered spamming and Wikipedia is not a vehicle for advertising or promotion. Because Wikipedia uses nofollow tags, additions of links to Wikipedia will not alter search engine rankings. - DVdm (talk) 19:49, 2 February 2021 (UTC)

Note: same for this. See previous warnings at User talk:2A01:CB19:8DBF:FE00:1CB1:DE2C:3BE:13C7. - DVdm (talk) 19:50, 2 February 2021 (UTC)