Since my first activities on forums, PhotoBucket did the most damage on forums than any other thing, so you can use it only if you are willing to pay for their services so my advice is to avoid it. About 2-3 years ago PhotoBucked blocked all images for all their users so only who paid for their services was not touched and for everyone else, each image was replaced with their default advertising
(https://us.v-cdn.net/5021930/uploads/editor/qc/2c78jt0p9xtx.jpg)
I guess kirmizi perfect site is very good option for now https://www.kirmiziperfect.com/community-gallery/
Can't confirm but it seems registration is not required for now to upload.
Keep in mind that there is no safe place on the internet where you can keep your pictures, safest place should be forum but that becomes expensive with time.