user account with rating/comment abilities but no password change

[bronchandes]

is it possible to create an account where the users wont be able to change the password but still can add comments/ratings??
but i dont want to give access without a password. so no annonymous guests.

[Joachim Müller]

do I understand this correctly: you want to create a  generic user account that several users are meant to share? You mustn't!

[bronchandes]

yes. thats exactly what i want. would be nice if i dont need to create an account for every single user.
what do you mean by you must not??

thx bronchandes

[Joachim Müller]

the whole point of user management is that every registered visitor of your site (who has higher permissions than an unregistered guest) has a unique user id. The whole comment/upload/rating system is based on this, as well as in other applications. You don't have to create users - let your users register for themselves instead.