What are some signs that a therapist may have poor boundaries with their clients?

Frequent phoning or texting of clients to “check up on them and make sure they’re OK.”

Sense of competition with persons who are important in the client’s life.

General Introduction to Boundaries from Panahi Counseling:

Why do people stay in cults after they have joined?

Disclosing feelings, fantasies, and experiences to the client in ways not related to the work the client is engaged in.

These items can happen fleetingly, briefly, in any therapy, but if they’re frequent, it’s definitely time for the therapist to get some good, solid supervision/consultation.

Obsessing about clients outside of work hours.

Why did Trump call Biden and Schumer Palestinians?

Off the top of my ancient head:

Failing to mention the client in supervision/consultation, out of fear the supervisor/consultant will advise return to ordinary healthy boundaries.

Routinely going over the time limit with certain patients, compromising the time for the next client.

How should one respond to compliments such as "You are so special" and "I'm lucky to have met you" from a guy?

Session-expressed curiosities about client details not relevant to the therapy.

Struggling with fantasies of deeper connections with clients, whether sexual or parental or other intense or intimate relationships beyond psychotherapy.

Eager anticipation (or anxious anticipation) of the next session in ways that distract.

Why is it so hard to date nowadays?

Serious disappointment when the client cancels a session.