Advertising done by advertising company for various clients

As an admin on nl-wiki my attention was drawn to an account and IP who both placed an article written as an advertisement for a travel company nl:Expedia. As I researched it turned out that the IP was belonging to a large internationally active advertising company GroupM based in Denmark.

I notified the IP involved and told them that paid contributions without disclosure are not allowed. I also asked for a checkuser here and the article was removed twice in the mean time. The checkuser confirmed the account belonged to the company-IP and also a range checkw as done, no other accounts on nl-wiki were present. I blocked the account and the range and notified the company on their talk page: nl:Overleg_gebruiker:37.205.121.132

I researched further and found that this IP and the account also placed other unwanted stuff cross wiki like placing company linkspam for various companies masked as references in articles.

It seems to me that an indepth cross wiki search for socks and the like is warranted since it seems this company is cross wiki advertising for clients.

According to COIBot the top 10 domains added by 37.205.121.132 were: expediainc.com (13), universe.dk (3), beiersdorf.com (2), museum-sonderjylland.dk (2), expedia.se (2), eucerin.dk (1), alsion.dk (1), sparenergi.dk (1), gastech.dk (1), bolius.dk (1)

According to COIBot the domains added by Alisalarsen were: expediainc.com (8), expedia.nl (2), expedia.no (1), over.expedia.nl (1).

Some of the accounts above no doubt will belong to this company others not so please can you sdo a global cu check on the company range to have the spam accounts please? Alisalarsen will most likely turn out to belong and I found also a company account when wading through the accounts made cross wiki Christiangroupm (nl-talk | nl-contribs | nl-blocks | CA | cross-wiki) but that one has no edits.

MoiraMoira (talk) 12:00, 4 September 2015 (UTC)

As checked with whoadded on #wikimedia-external-links on 4 sep 2015:

The link expediainc.com was added by:

The link Universe.dk was added by:

Editors who have added beiersdorf.com:

editors who have added museum-sonderjylland.dk:

Editors who have added expedia.se:

Editors who have added eucerin.dk:

Editors who have added alsion.dk:

Editors who have added sparenergi.dk:

Editors who have added gastech.dk:

Editors who have added bolius.dk: