I ran into a bug on Retrocomputing where I hit the suggested edit limit while editing tag wikis without realizing it, and attempting to submit any subsequent suggestions returned a server error, rather than alerting me I hit the limit.
Can the red tooltip that says "An error occurred submitting this post." be changed to something like "You have hit the suggested edit limit of 20 posts, please wait for your current suggestions to be reviewed before submitting additional suggestions." or something like that?
Some additional information about this scenario based on Shog's comments:
I had several suggested edits queued up in multiple tabs. I was prepared to submit them one by one, as the 30 second limit lifted. The fact that I was trying to submit several forms that had been open for 30+ minutes was probably the culprit. Thanks Shog for looking into this.