Are not "upvotes" are the only to save articles in HN, short of commenting? If this is correct, how many upvotes are people upvoting [1] vs saving for referenc

Are not "upvotes" are the only to save articles in HN, short of commenting? If this is correct, how many upvotes are people upvoting [1] vs saving for reference, or to read comments later - which for the latter I wish there was a save / bookmark in HN option. [1] ... and hopefully are not aware the content is sketchy