Upper Limit Reddit, Tumblr and Livejournal RSS Feed Results?

Question

I am aware of this syntax to get around the default 25 items limit when subscribing to Reddit RSS feeds:

http://reddit.com/r/[subreddit].rss?limit=[limit]

My question is, is there an upper limit on "limit"? For example, if I put in, say 500, would I get 500 items each time the feed updated or does Reddit just have a number which you can't exceed for "limit"?

Similarly, is there such syntax for subscribing to Tumblr and LiveJournal feeds, to get around whatever the default setting is? If so, is there an upper limit?

Thanks!

Answer 1

This is not part of the RSS spec in any way I would not expect that to work with Tumblr or LiveJournal. Actually, I would not expect that to work beyond Reddit...