People care too much about data format; the point is data ownership
In a service like Notion, there is a clear danger. If the service got hacked or went bankrupt, I could lose my data. (although it's almost 0% probability) Or there may be a danger that some Notion employee could steal my data. (if data was not encrypted)
Arguing a danger like this makes sense, and should be considered.
Logseq and Obsidian resolve this issue by "storing all data locally"; this is it.
In Logseq, there's no reason the data should be stored as easily readable raw data (like Markdown) for this issue. If we have enough ways to export data, we don't have to care what format it's stored in. Because "we own the data".
I don't understand why people are obsessed with 'Markdown'. This is an open-source project. Even if the whole team just died tomorrow, we can find a way to get our data back.
Of course, it would be great if we had both performance and Markdown format, but Logseq doesn't fit with Markdown.
Saying “the team should maintain Logseq OG because of Markdown format support” is totally absurd.