Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
I would have made over 100,000 edits, but I learned (after months) to edit offline, then check an article's revision history to merge multiple edits using just one SAVE operation. Tips:
Copying the edit buffer to a text editor allows search-and-replace.
Collaboration is facilitated by having titled sub-sections for each person to edit.
Edit-summary lines can be long: 4 or 5 different changes can be described (if abbreviated) as just 1 edit-summary save.
Check revision-history to see if revisions are frequent, or make changes during slow periods of article activity.
Avoid busy articles: anticipate changes being reverted depending on peer comprehension, and consider updates to other thousands of quiet, but significant articles, instead.
Avoid one-word changes: when fixing a spelling error, also add text or source footnotes; make each revision more significant.
An edit-page window can be updated between sessions by login via a 2nd window, then previewing differences to merge intermittent changes as just one save.
Double-checking of modifications can avoid creating another 20,000 edits, by waiting and combining updates as one save operation. Remember: Many planned changes can be postponed until other changes are ready; tolerance for vandalism has provided tolerance for "late" changes to be batched together.
Images edited
I have created and uploaded hundreds of images, many to Wikimedia Commons.
The Misplaced Pages project has struggled for years, but, like the initial years of the Internet, the information is maturing. Rampant vandalism is being fought by protected articles & anti-vandal bots.
I have added many articles, mostly on historic subjects.
The search for knowledge is a fool's errand. The most valuable knowledge I have learned is to be polite and forgiving with other people (although WP can be an extreme test of patience!).
(The name "Wikid77" is a contraction for "Wiki id77" as a user name.)