The Petition needs 150 signatures to be searchable on the White House site. They are holding it under 100, though news of the petition has gone somewhat viral on 3 sites: Reddit, Voat and YouTube, and everyone assumes there are well over 94 signatures.

Look at the comments on this video, which has 3,800 views, covering this Voat post on the suppression of the pizzagate petition:

https://www.youtube.com/watch?v=4Yyze3f5yFY

Many people verified their signatures, and the number didn't raise, according to the comments on the YouTube video. It was at 94 for over a day, and is now at 96. Anti-Trump petitions on the site are working just fine. Many people here signed too, judging by the comments in all the related posts (links found here).

Yesterday's post, "A call to action", has a sample email if you want to contact the White House. (thanks to @RedPi11 and @kplusk)