If you have posted a question here on TA asking for advice regarding hotels, be informed that most people who respond are sincere. Either they have stayed at the hotel they are recommending to you, or they know friends who have, or they have personal knowledge about its suitability for the person seeking advice. However, there are a few people who seem to be employed by the hotel industry and they just provide random lists of hotels that have nothing to do with, or very little to do with, the kind of information that is being sought.
If you've asked for a hotel recommendation in the Latin Quarter and have been given a link to a hotel in the 2nd arr, for example, you're being played a bit by someone who's being compensated to publicize a certain hotel or group of hotels.
This doesn't mean that all posters here agree with where it's "best" to stay. It doesn't mean that you won't find someone who suggests staying in the 2nd over staying in the Latin Qtr. But it means you should be a bit discerning about whose advice you consider. If it's a random list that has nothing to do with your post, look into it further.
Perhaps check to see what other posts the advice-giver has participated in. You can do this by clicking on the username. Are the vast majority of posts having to do with lodging, and is each post basically a list of links to hotels? That's a red flag.
Often, people here will respond with a list of hotel links. (I know I've done that. ) And if you haven't been to Paris before, it's harder to determine whether the lists are legit or not. So ask follow up questions when needed.
I noticed this problem again today on the forum, and I'm putting this out there in hopes of helping new posters separate bad info from good. As I said, we don't always agree here, but most of us offer information based on our observations and experience. It really rankles me to see otherwise.