When a link is embedded in between square brackets, for example [https://feedback.secondlife.com/ like this] you can hover your mouse over it and a small toast window will pop up with the link in it.

However if the link is embedded with an emoji in between the brackets there will be no toast, e.g. [https://feedback.secondlife.com/ like this 👍].

With all those phishing links being everywhere in SL I find it rather risky that somebody can just hide their link entirely like this.