Also if you are ignores by someone who created the topic. Cant reply to that and see it.
No, that's not the case... You can reply to topics that were made by someone that ignored you, but they'll only see the following line instead of the post itself:
This user is currently ignored.
Sorry for the fire drill. Now I see it.
Topics are locked by the owner when they think they have found the answer to the query and also to stop spam. Like your topic in my opinion has been answered by @JeromeTash. Now it is better that you go ahead and lock this topic if you are satisfied with the answer. Otherwise this topic will get spammed and later on might get deleted by the moderators.
Yes, the previous post is locked.
But this post needs to be locked by the moderator, right? I can't lock it myself. In the previous post, I wanted to lock it myself, but I won’t be able to lock it.It appears that you forgot to use the correct
[beertoll] account but just to answer the question, the "lock topic" button is in the bottom left corner of the page

Yes, at the bottom of the page, I saw it, I always thought it was at the top of the page, and then I was confused. Haha. . thank you!