Popular free messaging app LINE was forced to remove one of its key sticker features today, eliminating the ability for its users to purchase and send sticker sets as gifts to friends. Stickers are an important monetary source for LINE, notes The Next Web, bringing in $17 million last quarter, which represented 30% of the company's total revenue. Stickers can be sent in chat messages and represent different characters and emotions. The stickers, which are bought in sets, can also be gifted to friends for their own use. A set of stickers generally costs $1.99 and includes 40 different sticker options. We received a r
