This is a discussion forum, and the only way you can learn is by discussing. Just dropping a topic and not reading to see what people are discussing on the topic doesn't make sense. Make use of the Telegram bot or any other ways to keep track of replies to your topics and posts, interact, and not just drop topics and forget about them.
They make new topics to create places for fake discussions and to fish merits and with such people, they will continue as this approach is helpful for getting their signature campaign post quota much more easily and to fish merits from other forum members including merit sources as well as to exchange merits.
Yeah that is also how much I can think which I believe they are getting it wrong because the forum would never work as they thought.
If their intentions of creating threads was all to get merits, I doubt if that is encouraging to acquire growths in the forum because that behavior is a sign of unseriousness which we know that knowledgeable and willing to learn newbies will always reciprocate to any informative or skeptic replies of others in their posts for clarifications and satisfactions.
Moreover merits are earned based on the qualities of users posts. So if those in questioned newbies keep ignoring their posts as the OP, that means they have long way to go on the forum and merits will be far from them and joining campaigns due to lack of merits and quality posts won't give them the opportunities to campaigns.
Such are the kind of users who later beats the drum about how merit sources distributes merits because they are not getting any due to their shit posting styles.