Questions typed during the update have twenty minutes to gather upvotes, so by the time you look at the list it is already ordered by what the company most wants answered. Asking a silent room at minute fifty-five is asking who wants to go first.
An upvote count on a screen is a public promise. Skipping the highest one for something easier is visible to every person who voted for it, and it teaches the room that the ordering is decorative. Next month they will not bother voting.
Softening 'why did the reorg happen the way it did' into 'a question about structure' is obvious to everyone who upvoted the original. Reading it verbatim, including the uncomfortable phrasing, is most of what makes the next one get asked.
One joke about who probably wrote that is enough to end anonymous questions for good. Treat the absence of a name as the point of the exercise rather than a puzzle to solve out loud.
Half your audience is on a video call and cannot scan a code taped to the wall of a room they are not in. Put the code on a slide that stays up between questions, and read it out once at the start and once in the middle for the late arrivals.
The question people wanted to ask often arrives ten minutes after the call ends, when they are back at their desk and nobody is watching them type. Answer the leftovers in writing and send them round.