When the new top bar rolled out, the suggested edit indicator disappeared. A short while later, they came back, but with the understanding that they'd eventually be replaced by an indicator for all queues, not just the suggested edit queue.
Unfortunately, due to implementation limitations, the new results have to be cached and aren't customized per user, so they don't indicate anything useful to individual users. And as a result of these limitations, a decision was made to only show the queue if it has at least 10 review tasks.
Of course, this is bad UI. People click notifications to make them go away. But that only matters for larger sites like Stack Overflow. What about smaller sites where there are never more than 10 tasks in the queue? For these sites, this change is much worse:
The suggested edits indicator has, in effect, vanished!
People will still review edits sometimes, but without the indicator we're back at square one: reviews will happen, but fewer users will review, and it'll take longer on average for edits to go through. For example, I recently found a suggested edit on ELL, but the only reason I know it's there is because I happened across the question. The question had been waiting for a review for over an hour before I saw it, even though I'd been on ELL the whole time.
Without the suggested edits indicator, we're back in the situation Gilles described:
The suggested edit indicator is useful. Suggested edit review is not like other review tasks which can wait until somebody's interested in doing moderation. A pending suggested edit on a post locks the post against modifications by users without the edit privilege. Without the indicator, posts will spend longer in that semi-locked state. That's not good.
Sure, this doesn't apply to larger sites where the queue is typically larger than ten items. But for us over on ELL, the indicator's altogether gone!
I miss our suggested edit indicators. Could we have them back, please?