Some of those XP lamps even give you double XP up to a certain level, essentially giving around twice the normal lamp XP. All determined by which of the OSRS gold constant, nagging"special limited time offer" lamp types they're running that day. You get like two distinct popups every world alter or login, and there is an obnoxious button and banner ads in your hud often times too.

Loyalty Points mostly give cosmetics like outfits, recolors, titles, and emotes, but they also get Auras, which provide buffs for a duration and go on cooldown. Auras have their own gear slot and can be BiS for PvM and Skilling. Oh, and they also did a few cosmetic exclusive to membership cards or packages; not certain if they still do them.

Events are ordered so that you usually cannot get all of the rewards without spending cash or grinding an ungodly amount of hours in a brief period.

I would argue it is at its absolute worst currently. It's especially bad when the promotion Yak Track comes around. The Yak Track was supposed to be an alternative to the Buy Runescape gold uncontrolled Treasure Hunter promos that Jagex runs, but the past couple have abused people's FOMO and leaves the challenges ridiculously dull to strongarm them to large action skips with Bonds.