Congrats on the frontpage.
As far as I remember, you made a few threads on the matter before and I checked your post history for confirmation, that indeed, you received the answer that the person who has scouted you was probably unscouted and thus the branch you were on was cut off. You appeared to confirm this in one of your earlier threads. Did you get different information in the meantime from anyone?
You made personal accusations against an art mod both here and in the general forum, which turned out to be not true. I doubt anyone who was around at that time 3 years ago when that occurred will really jump on the chance to scout you unless your art was stellar - maybe.
That being said, since you got a prominent spot on the frontpage enough people should see your art and you have a good chance to get an invite during that time, if they feel your art is good. The art forum users only make up for a small number of the eligible artists on NG, so if you still don't get an invite, none of your previous posts here can be blamed for that. I can confirm that you are technically scoutable, that means the link "Scout ...?" does appear when I visit your art page. That means you're not banned or blocked from it.
Many users were frontpaged without being scouted, the FP is more about personal taste of a mod or admin.
All that is my personal opinion of course. Good luck with the matter.