* **Trolling or not liking the subreddit.** This is the most likely reason, as it is a common tactic used by trolls and users who dislike a particular subreddit. By posting content that violates the subreddit's rules, the user can get themselves banned and avoid having to interact with the subreddit any further.
* **Making a point about the subreddit's rules or moderation.** Some users may try to get banned from a subreddit in order to make a point about the subreddit's rules or moderation. For example, they may post content that violates the rules in order to show that the rules are too restrictive or that the moderators are too heavy-handed.
* **Getting attention from other users.** Some users may try to get banned from a subreddit in order to get attention from other users. This could be done for a variety of reasons, such as wanting to be seen as a martyr or wanting to start a conversation about the subreddit.
Without more information, it is difficult to say why the user is trying to get banned. However, it is important to remember that getting banned from a subreddit is a serious consequence, and it is not something that should be done lightly.