Deals are occasionally posted with the link leading to a third party data collector rather than directly to the deal site.
For example (I'm not trying to pick on the deal submitter, as there are others doing the same thing) the deal posted under https://www.ozbargain.com.au/node/460755 will take you to AliExpress via https://www.anrdoezrs.net/links/5513991/type/dlg/https://www…
I don't see why "www.anrdoezrs.net" should be involved in the flow of the deal and my Pi-Hole blocks this redirection via public blacklists.
Do others feel concerned with deals posted this way, and should/what can be done ?
Seems you may be describing different things.
So if you are logged in and getting those links, then there is an issue with your computer or DNS.
Thankyou. That perfectly explains the different behaviour I experienced. Thanks to all the others too that provided suggestions or took time to respond.