This is one of the most obvious reasons for which many newbie lacks merits because they are not getting into depth of the topic and posting irrelevant content or simply ignore what the topic is about and keep repeating what other above Posts have said whether they ar wrong or not.I can also quote many such replies where you will find similar craps.Like in one LN threads if you are discussing about channels and different wallets but some members will be posting like you need to consider the transaction fees as they are high and all other garbage stuff.So undoubtedly they are writing up with zero intent of knowing what the thread is about.So no merit for them.

There are many threads in bitcoin discussion section like in which @OP has said something else but the replies are generally off topic and you will find one or two legendary members giving the correct answers.So what do they think that do they deserve merit or legendary member who is appropriately answering to the doubt.