Collapse and/or Expand comments based on account age.

There have been lots of posts here over the years about features related to 'account age'. I did a search trying to find my exact suggestion, but couldn't find any. Most posts regarding 'account age' are quite old and they all seem to focus on the admin side of things. Like people requesting "Posting limits based on account age". For example "I only want people with ___ year old accounts to be able to post in my subreddit" etc. That's not what I am suggesting. I dont think anyone should ever really be limited from participating in reddit for discriminatory reasons like that.

But What I thought would be a great feature (for at least reddit gold members) is the ability to collapse / expand all the comments in any post with a single click, based on a specified account age.

This would requiring saving the account's age along with every comment submitted by everyone's account. Then you could do all kinds of awesome filtering.

For Example:

"Colapse all comments with accounts younger than ____ years"

Or

"Colapse all comments with accounts older than ____ years"

The possibilities for usefulness are limitless. It could help filter out noise, or help drill down to funny comments by novelty accounts.

The ____ could be a drop down with a limited number of years to choose from (as to not have to cache too many possibilities).

I do tend to trust comments from accounts that are older, and anecdotally older users tend to have more interesting things to say. It'd be lame to limit what people can do based on account age, but being able to filter by account age is another thing entirely. It would be nice to be able to quickly glance at what the 'elders of reddit' have to say on any story with just a click.

This feature probably wouldn't be able to work 'retroactively' without being too resource intensive, but if you 'baked in' an accounts age as a field thats saved in the database along with every comment a user makes, it seems very feasible and not resource intensive to me.

I cant possibly have been the first person to think of this, so by all means point me to the thread I should have piggybacked off of. My reddit search fu isnt strong.

Otherwise, please let me know what you think?