A new blog post from iOS Developer Melissa Chan of This Century Software indicates that Apple is tightening its policy on the number of iMessage sticker packs that individual developers will be permitted to publish in the App Store. Chan, who develops a large number of popular iMessage sticker packs, many of which have been prominently featured by Apple, began having her sticker packs rejected by Apple back in May under section 4.3 of the App Store…
