We have limits in place to reduce downtime and errors. These limits help prevent spam and other attacks, as well as help maximize site performance for our users. We've set the limits pretty high so you may never see them at all.
This limit is currently set at 200 hearts per hour. If you're constantly reaching this limit, we're glad you’re enjoying We Heart It. Hearting more images than that in that period of time causes a heavy load on our servers and can make the site slower for everyone.
When you reach the limit you'll see a warning message and you won't be able to heart until after an hour has elapsed. We recommend you take a short break and check back soon to be able to heart more -- or get creative adding your existing hearts to collections!