server query string

Would it be safe to have people subscribe to an RSS feed with something like ?username=var1&password=var2?
sending authentication credentials in a query string seems to be the only solution I see right now. Does anyone know if aggregators can send POST information to the server?
I'm trying to show content based on credentials.
Never a good idea. Are you trying to show content based on credentials or are you trying to track who's subscribing?
[phpbay]server query string, 30, "11211"[/phpbay]
[phpzon]server query string, 5, Electronics[/phpzon]
How to admin your TS Server!