Searchable SDMB archive?

How do you search the SDMB archives? Someone did it for me once when I was looking for a 20yrold thread but of course I didn’t ask how? The most tecent info i can find by dearching here is 15+ years old and doesn’t provide a workable solution

Open your search bar and follow this format:

before:1999-12-01 Cecil

{before:/after:}{YY-MM-DD} {Search Terms}

You could also use the calendar in Advanced Search, but freetyping it in is quicker.