>they're not in immediate danger of being replaced by another aggregate news and/or niche site //
I'd say they're not in immediate danger because they're not making a profit and most businesses that have the sort of money needed to support such an effort (ie the large traffic) don't want to waste money on something that's not going to make a profit. Indeed Conde Nast appear to have only recently and quite reluctantly allowed reddit some more resources.
Explosive growth in traffic, yes, what's the balance sheet look like.
I'd say they're not in immediate danger because they're not making a profit and most businesses that have the sort of money needed to support such an effort (ie the large traffic) don't want to waste money on something that's not going to make a profit. Indeed Conde Nast appear to have only recently and quite reluctantly allowed reddit some more resources.
Explosive growth in traffic, yes, what's the balance sheet look like.