It is really hard to answer your question, it really depends on the situation, and every picture is different. The golden rules are: one font request per thread (although, there are small exceptions) and no manipulated image.
Opening a jpeg image in a photo editor can alter its quality. Like I said, your images are manipulated at some point, and as it is stated
on this page, this is not accepted.
Your images are manipulated/enlarged at some point. You should only post the original/unmanipulated image.
You have already posted an answer to the same request here:
http://www.dafont.com/forum/read/89407/shohoku-logo-font
If this request wasn't solved, and you already participated in it, there is no need to create another topic with the same request.
Fabredanielle ha detto 
Ma demande de ce matin ayant disparu, je la renouvelle...
Quelqu'un peut-il reconnaître cette police de caractère ?
Merci d'avance pour votre aide
Danielle
Elle n'a pas disparu, elle a été enlevée car l'image postée était agrandie ou manipulée, ce qui n'est pas autorisé comme précisé sur la page qui permet de poster un nouveau message.
Hi, it doesn't show up because it's been deleted. That's because the image was enlarged/manipulated at some point. You should have received an email explaining this. You should take the original image with no manipulation whatsoever.
If you're only interested in seeing the latest fonts in one particular category, you can sort them by date
like this. This way, you won't need to go through thousands of fonts. Of course, you still have no indication of popularity, but it might be an alternative solution for you.
Fuso orario: CEST. Ora sono le 12:58