I suggest you may want to archive the results of the following searches:
It's mostly PDFs, but some doc/docx, xls/xlsx, ppt/pptx, etc, also.
After you've secured the documents, you may want to follow up by emailing
them to ask which documents they actually do consider to be classified or
not, and why. Perhaps some really do deserve privacy; perhaps some were
intentionally made public; perhaps you'll simply be able to provide more
context as to what documents they most want you to take down.
For context, Ofcom is the UK's regulatory agency of more or less all
communication services (telcos, mail, internet, etc) — roughly parallel
to the FCC in the US.
As best I can tell so far, none of the results seem to plausibly deserve
classification. E.g. this comment on a public rulemaking about meeting universal
service obligations, by one of the UK's largest ISPs, is marked "strictly
confidential":
There are also mixed-redaction documents. E.g. this is marked "public" on
the first page, and has redactions on pages 20-25, but also has long "strictly
confidential" section at pages 32 -146:
Some have the classification stated only in the metadata, e.g.:
Some fully redacted results which have stray classification headers, e.g.:
Note that sometimes the "classification" text is present, but visually hidden
by the header:
Just by way of example, this is only the first of a few thousand search results:
