> Since my feeds seem to work, I will publish the page containing them:
> The most active ones and "new UNsolved problems" and "New Solved
> problems". Let me know if you think that I violated some important RSS
Don't check their validity manually. Check using a feeds validator. Some
feeds clients (/readers) will display a warning whenever a feed which gets
displayed is invalid. So, you definitely want to avoid that embarrassment.
Roy S. Schestowitz