[bayindirh]

Because it's old (over 10 years old), works well, battle tested and practical.

Trello allows for great collaboration and informal planning, even for daily life and for a single person. It allows capturing great deal of information under a card and showing a great deal of information without overloading your senses.

So, in short, "It works (TM)", and works well.

[Spivak]

If those are your pros for Trello then you probably would love Notion. Cards are just pages which can capture anything.

[bayindirh]

Thanks for the offer. :)

Actually I have an integrated system which enables me to collaborate with many people on Trello, and my knowledge base is on Evernote for a very long time now.

I consider moving from working systems to other stuff just because it’s new and hip harmful.