Guidelines when editing questions
90953
When should you edit tags?
105169
No reputation for editing questions?
82521
Prevent protecting questions under certain circumstances
152818
Can we get a better wording for protected questions?
149990
Preventing misuse of question self-deletion
71206
Suggestions for editing old "Not constructive" question into constructiveness so that it can be preserved
76924
Should we be allowed to edit comments?
23276
Editing edit summaries
31531
What is the etiquette for modifying posts?
128610
Does editing still bump a question?
48794
Is it OK to edit a correct answer for fullness instead of answering?
81316
Copy-paste from question to snippet
75908
Add "Questions edited after closing" review task
1897
Should Suggested Edits change the technical content of a post?
116432
Change edit approval/rejection
137952
Allow changing votes on answers if the question is edited
25211
When is "EDIT"/"UPDATE" appropriate in a post?