One problem that many are not aware of is the behaviour of the re-open queue.
There is an inherent SE-design problem with our desire to edit posts into shape and our behaviour in trying to ensure this with fast and numerous small friendly edits.
Please do not edit questions that have recently been put "on hold"
—— with minor edits that do not attempt to address the "on hold" reason as well.
In other words: "If its recently been put on hold, only edit to attempt to alleviate the problems that got it put on hold".
If you do edit within the first five days it will enter automatically the "re-open" of the review queue.
If your edit is simply a correction of grammatical errors or a correction of the question's markup, without addressing the real reason for the "on hold" of the question, then this is the case:
- the question will very likely not be reopened from review
- when the original author fixes whatever the actual issue is with the question, it will not be put back into the review queue
- as a consequence, the user will be denied the opportunity to have their question automatically pushed into the reopen review queue.
When a question is put on hold, it is not necessary to change it, especially not just to delete a few lines of "Thank you" or "I am a Noob", or to correct the markup or spelling (unless it helped to put the question on hold, which would be sad).
All the above does not apply for really fast edits — before it gets "on hold" status.
If you think you can really improve the status of the question so that it is worth reopening, edit it in any case and then vote for reopening.
If you are editing messages, and especially if you are editing questions that have been closed within the last five days (and doubly especially if you are <2K rep (or 1K, since we're still beta) and submit an edit suggestion),
try to identify all the things in the message that should (can) be improved and change them all into one edition.
Don't do a little editing, then another one, then another one, then another one. If you need to make many changes and are afraid of losing your Internet connection, work in an editor on your system and copy them to Stack Exchange when you are ready to do it all in one go.
As explained above, even a small modification of a recently closed question will move it to the reopening queue. If you make only a small change, the question will probably not reopen, so you have wasted the "free" criticism.
When you submit suggested changes, you work for the reviewers in the suggested queue. Please do not increase the workload for these reviewers.
And, if you make a lot of changes to the same message, it seems that you are trying to milk the system for its reputation (i.e. get the +2 several times).
Many small changes clutter the revision history and constantly bump the post to the top of the homepage or active questions tab.
Therefore, a little redundancy:
Edit first, then vote-to-close (if it's still open but about to be closed))
Wait five days, at least, for minor edits:
Minor edits that do not address mainly the closure reason, like tagging, spelling fixes etc, should wait a little more than five days
Edits that do address the close reason after five days should be accompanied with a re-open vote!
Try to always edit everything you can to improve the post in one session.
Largely copied from Kusalananda♦: "Editing questions recently put on hold (don't)", Unix&Linux meta