[Error, corrected below] ~~The author is making incorrect assumptions about how ChatGPT works~~. ChatGPT simply does not go to specific websites suggested by users. It will perform Bing searches and "go" to those websites (or read from Bing cache?). I suspect navigating to specific websites suggested by end users could open up a variety of security concerns, AI safety concerns, and fraud concerns.
As always with GPT it's a hard balancing act. There is probably an instruction to ensure it does not visit urls un-necessarily, otherwise every request out there would trigger a search on bing if only to get more up to date information. Like "what is the capital of France" "Well let me ask Bing, you never know".
Whatever protection they have is clearly overcorrecting in this instance.
It simply doesn't have the ability to visit a specific URL or answer questions about it. For that reason + a couple more niceties I use <a href="https://olly.bot" rel="nofollow">https://olly.bot</a>