If you stop playing you'll miss out on something or be left behind and unable to catch up.
"events with exclusive rewards happen every month with a tight window to fully complete them, and require checking back in several times a day to efficiently complete."
"star stable occasionally releases "magical" horses, which only stay in-game for a limited time. they do come back from time to time, however, allowing people to get them at a later time."
"YES. Constant extremely short-lived events, most releasing powerful dragons with good abilities and stats, as well as several extra rewards that make progression easier, as well as items that allow players to empower pre-existing and new dragons. Being away from the game for a long period of time means months-worth of progress lost and inability to keep up with the PVP metagame."
"Attend the event daily & buy, or miss out, you MIGHT get one chance but it'll cost you more time & money, or skip buying all together and miss out character payed function and those functions upgrades, skip a day and risk missing out gathering resources to unlock or power up collab figures."