You are blocking access to comments for anyone not a Premium subscriber
While I realize you are attempting to make as much money as possible, blocking people from reading the comments or making comments to articles that we read months ago and have been conversing on for months is going to destroy your clientele and you will never get new subscribers. There is a cost benefit to where the line should be drawn and cutting off everyone is stupid. If we have no reason to come to SA as a non-premium user then the term premium is a lie. There is no usage for anything other than premium makes premium just a basic fee for access. SA is hardly the only place and beginning to be the worst place to read and comment on market news. Stupid is as stupid does. Block all access and block all potential.
As an SA user since 2010 I have watched you slowly destroy the reasons to come here. Now you have blocked access to past comment streams on 'expired' articles, without a subscription. That's pretty much the last straw. Why would I want to come here any more if I can't go back more than a couple weeks to see content from past comment streams?
Your attempts to monetize SA are destroying its value and the chances of ever reaching your goal. Given the multiple "surprise" restrictive changes that seem to appear without warning, how do you honestly expect anyone to subscribe to anything? I've no desire to do so simply because I believe you would continue to turn the screw every couple months by further restricting what my money buys in the way of access.
For now, I'll likely keep reviewing free content, but one day in the not too distant future, I will probably just give up on SA entirely. I can see the lengthy stream of complaints you receive in this vein, and yet you continue on by incrementally destroying what little value remains.
Best of luck with that.