For the reliability of Pinduoduo operation course training, this needs to consider multiple factors.

The following are three key considerations:

1. Qualifications and reputation of the training institution: Before attending a training course, you should first check the qualifications and reputation of the training institution. Learn about their course content, teaching methods, teacher qualifications and other information to determine whether they are capable of providing effective training courses.

2. Content of the training course: The content of the course should include the basic knowledge of Pinduoduo operation, such as market analysis, product promotion, customer service, etc., as well as the latest operation strategies and technologies. If the course content does not meet these needs, then this training course may not be very reliable.

3. Evaluation and feedback of learning outcomes: A good training course should provide evaluation and feedback of learning outcomes to help trainees understand their learning progress and provide suggestions for improvement. If the training course cannot provide such services, then this course may not be very reliable.

In general, whether it is reliable to participate in Pinduoduo operation course training requires you to make comprehensive considerations based on the above three factors. The best way is to choose a well-known and reputable training institution, and check their course content and services to ensure your learning outcomes and return on investment.