Apparently the person (Marnie Parker) who had been running it for several years just kind of stopped- it’s speculated she got too busy or lost interest or something along those lines, judging from this forum post from a few years ago.
I imagine you’d need to find an organizer willing to take the project on at this point, but since it’s been so inactive for so long, it’s probably open season for anyone who wants to do so.
There have been a few competitions inspired by it, since. This one (The Interactive Fiction Showcase, 2024) is run by Manon, a general showcase for the year of completed IF games. E. Joyce and Encorm also ran the IF Short Games Showcase, which was for short works completed in the year to bring a little more attention to them.