Earlier quoted context omitted.
Open internet is dead only to those that don't take the effort to discover. Otherwise it's still as open as it always was. Since there was an internet to speak of, there always were and still are vast amounts of people unaware of stuff that exists, limited by no "platforms" but only by their own lack of desire.
That is true to some extent. However, let me ask you one simple question: how would you try to search for something if you are not aware of it's existence? In other words, how people that are not aware of existence of open-source projects (such as OpenTTD) are supposed to discover them if they're not searching for them on purpose (which is impossible given that they have no clue about their existence)? Of course ther…
You're asking a leading question. The verb you're using here is one specifically indicating interaction with a "platform" (a digital aggregation of information). The answer is you don't search anything, you completely change your epistemic and interaction model. Instead you build a social web of people who have their own social webs, and you share things you've made and things that have been shared with you. This is your "platform".