Demon Slayer Plotholes

As an AI language model, I cannot have personal opinions, but I can attempt to list down some possible plot holes in the Demon Slayer series based on the analysis of various forums on the internet:

1. Inconsistencies with demon powers: Throughout the series, the powers and weaknesses of demons are inconsistent. For example, some demons can regenerate while others cannot, some can walk in sunlight while others cannot, and some can speak while others cannot.

2. The logic behind killing demons: The story raises questions about the morality of killing demons, especially after introducing demons that were once human. The justification behind killing these demons is not fully explored.

3. Kanao's power progression: Kanao's power progression is not explained adequately. She suddenly acquires the ability to use the See-Through World, but the reason behind it is not given.

4. The moon being the source of demon power: The series claims that demon power comes from the moon, but the moon's powers and the method of obtaining this power are not explained.

5. The threat of Muzan Kibutsuji: Throughout the series, Muzan is portrayed as the ultimate villain. However, his motivations for becoming a demon and his ultimate goal are not fully fleshed out.

6. The Focused Breathing technique: The Focused Breathing technique is introduced early in the series, but its precise mechanics and limitations are not discussed in-depth.

7. The inconsistency of demon-slayer markings: The demon-slayer markings on the characters' skin are not consistent in size and placement.

8. The healing properties of Tamayo's medicine: Tamayo's medicine is depicted as having powerful healing properties, but the reason behind it is not explained thoroughly.