Frequently my feed will have old posts (couple days to months). Does this mean my account got hacked? Is there another explanation?
Are they retweets?
I don’t think any kind of hacking would cause old posts from other people to appear on your feed.
[mod] Moved CS --> IMHO [/mod]
[nonmod] They’re probably RTs – check the small print. [/nonmod]
I believe some Tweeters get bumped up to the top of your feed, just for being prolific/popular/famous (mostly because they’re famous).
They aren’t RT, but Bob’s theory seems most likely