It is difficult to say what a religious person can and cannot do. Religion is the pathway to faith, and faith is faith in the Divine.
All religions have a moral code, and responsibility for following the moral code falls upon the believer. For example, St Paul told the early Christian Church that if people caused scandal, to put them out. Other religions excommunicate or disaffiliate people for not believing the faith and misleading people, or for being destructive towards religious practice.
Always, the responsibility for following a code of practice prescribed by a religion (such as the Ten Commandments) falls on the believer or the devotee.
- Another Opinion
Depends on their religion, satanists are religious, but there very different from Christians who are also religious.