I would say there wasn't a lot of option to buy BTC at that year, and the only good option was to tarde with some users on this forum, but at that time the forum wasnt really popular at all, only few users know about It and the amount of mineras was really low even if the complexity of the mining network was really low, we are talking about Cpu mining and 50btc on each Block.

Back in 2010, Mt. Gox was pretty much the only option for buying Bitcoin. New Liberty Standard was around, but it wasn’t a full exchange. Mt. Gox’s collapse in 2014 left a lot of people out of pocket, and many still haven’t seen compensation. It was a gamble back then, but it was your best bet if you wanted in on Bitcoin.

Repeating the discussion to more than a decade actually seems difficult to digest for me because even for people who are on this forum, maybe only a few of them have experienced it even though the sources we have when reading some journals or articles are certainly there but it will be a little different from the people who experience it so in the end I think speculation will not be too relevant to discuss because it is a past that not even everyone on the forum feels that way.

Instead of focusing on the discussion of the past it would be better if we only discuss for now where now with the spread of bitcoin which is already quite well known to many people, there are currently many exchanges that can be used as options. Because for me it would be a little useless to explore the past because maybe even though there are some who can do bitcoin transactions, it is not certain that the exchange still exists today.

no one took up his offer, whether it be $0.01 to $100. there appears to be no one that took the offer.
his price was not estimated based on trade occurring, but based on a advertised price he created via doing math of his mining cost estimation by looking at his electric rate and calculating how much coin could be mined if be paid $1 in electric to mine it

Back then, there were only a few exchanges available, like the ones you mentioned. That meant there were fewer options, and not many people were interested in buying Bitcoin. However, 2013 was the peak year for Mt. Gox, they were processing around 150,000 BTC per day until they collapsed in 2014.

If you want more details, you should definitely check this out.

Estimating the Market Impact of Mt. Gox Repayments