".......but I get jittery when something amends my posts"
Me too. I made a couple of posts the other day where I mentioned eBay, Amazon and Dell and was a tad miffed to see that links had appeared making it look like I was promoting those companies.
By the way, a lot of users here use Adblock Plus, and with a bit of tweaking you can make those links disappear without installing any extra add-ons. Simply remove the tick from ADP's "Allow some non-intrusive advertising", click OK then refresh the page.
And I agree with robin_x about changes to my postings. Have queried with FE but no response. I suspect that some of those fancy video ads we are now getting could be the culprit, and that's the price we pay for having a free forum site??!!