This is a good strategy. To write your own thing, and not rely on Google and others, who insist that you log in and remain online just to write a simple note.
Yes, I often think of how many note taking and bookmarking services have come and gone in the last 14 years :)
By sticking to a simple wiki that uses plain text, HTML, and HTTP, you avoid a lot of churn, and can concentrate on the real goal, which is organizing and retaining knowledge.
It started as a CGI script, migrated to a server I can no longer recall, then to my own web server (an experiment), and is now a WSGI app in Python running on gunicorn, behind Nginx.
It also started using flat files like pwyky, but now it uses sqlite.
All the data was undisturbed throughout those technology changes, which is the important part.
