I am not sure but it is just number of offer in MaxBounty, i dont think it is unique for each user.
Can I ask you check next offers (are they good for promote or not)? (you can easy find it in search)
MaxBounty: Campaign 5478: Playstation 4 - One Field
PeerFly:PlayStation 4 [Exclusive] Email Submit (11274)
those can be good if you target that niche, generally iphone 5s offers perform the best, because almost everybody wants an iphone, but not everybody needs a ps4
i tried a lot of offers, but i found, if i don't target by any means, just follow people out of the blue, iphone email submits worked the best, other apple products are good too, like the ipad or ipad mini, but the iphone is the king
there's no need to reinvent the wheel here
instagram has a massive user base by now, so you can't really saturate it with iphone offers, even if a lot of marketers do the same
on the other hand if i were you, i'd just test the offers what i think can perform well
i follow a routine with email submits when i'm looking for new offers to promote:
with email submits the conversions are showing instantly most of the times, if there isn't any conversion within the first 50 uniques, i just switch offers, most of the times if an offer is any good, the first 1-2 conversions are happening within the first few uniques, then later it gets adjusted and after a few hundred UVs, you can decide if it worth it to you or you want an offer with better conversion rate
i'm not a pub on MB, but there must be an option to order the offers by EPC, so you'll see which offers are worth to promote and which aren't
but if you do everything manually i can imagine even this first few hundred uniques will take quite some time