So, there are a couple of comments on here I can't see, one of them mentions the technical challenges, here's a comment on the github post I referenced in the article, perhaps you could address this, again, this is not my comment:

@theoreticalbts Uhm, not buying this part one bit...

The reason for the 30-day window is to allow old posts to be archived -- get them out of the database. Our memory usage is already getting uncomfortably large; requiring everyone to keep everything back to the beginning of time will be counterproductive.

I call shenanigans because the very principle of a blockchain is that it is able to archive everything starting at the very beginning from whence it came. If the problem is simply indexing it in a database then making it easier to query with less stress on your server, maybe it's time to put some of the massive amounts of reserved capital to good use, and make use a data center like every other major platform of this proposed magnitude. The entire "print" library of congress would fit into 15TB and all of twitter from it's inception would fit into 20TB.

Source : The Library of Congress Article On Digital Preservation

Saying it's a memory issue is simply a cop out and a total attempt to convince the less tech savvy that long term accessible storage is expensive, RAM is out of the question, processors are unattainable, and that renting or maintaining a server rack is an unreasonable expectation. The Steemit blockchain does not store pictures, audio, video or anything that is storage intensive right now. Having personally analyzed the blockchain, as of right now it only stores plain text.

I'm not buying it for one second. If that was truly a real issue, then big data centers couldn't exist because they would simply be too cost prohibitive which they obviously are not. Nice try on using a false scapegoat as a cop-out excuse, but anyone here who has any experience with big data knows that :

requiring everyone to keep everything back to the beginning of time will be counterproductive.

The above statement simply is not true.

Feeding people BS however, IS counterproductive. I store the entire Steemit blockchain on a flash drive right now. In fact I can fit the entire 2 years worth of the Ethereum blockchain on a flashdrive right along side Steemit's and still have room for plenty of future blocks from both chains.

I'm not buying this excuse for even a nanosecond, and neither will anyone one else with common sense and even a basic understanding of how big data works...