Just add your art to lots of groups.
No, there is not a limit to how many favourites you can have on deviantART. You can have anywhere from 1 to 5,000 and more. Putting a limit on favourites would not be ideal for dA, because favourites are a way for artists to see if people like their art and to get exposure.
Because comments are a bit of a status symbol and are more visible to visitors than being on someone's fave list. Plus, it is an ego boost for someone to get positive comments about their work.
Click on the deviation you no longer want favorited, then once you are on deviation's page you look at the area where it would normally say "Add to favorites". If it was already favorited by you it will then say "Remove from favorites". Click that and wait until it says "Removed" . If you change your mind and want to favorite it again - just wait and the "Removed" button will go back to "Add to favorites".
Click on the deviation you no longer want favorited, then once you are on deviation's page you look at the area where it would normally say "Add to favorites". If it was already favorited by you it will then say "Remove from favorites". Click that and wait until it says "Removed" . If you change your mind and want to favorite it again - just wait and the "Removed" button will go back to "Add to favorites".
No.
Keyword is an area for you to enter keywords for an image you are uploading to deviantART. Adding keywords for your images enables people to find your image via the search bar in deviantART. The more words you have that relates to the image, the more chances you image will be seen.
You can't delete your deviantART page.
The DeviantArt Mascot Contest was in 2001
people who viewed your deviantArt page.
DeviantART glitch updates can be found in their Status Forum.
You can't use badges on DeviantART.
No, you do not. It is not required to post artwork to have a deviantart account.