A social network is having many filters that can trigger flags or bans for accounts. Here is how to safely change accounts profile data:
When editing usernames and names avoid spammy and repetitive keywords.
When uploading avatars or feed photos avoid using the same images between multiple accounts. Also use Batch Purifier to remove hidden image metadata. Use different file names for the images.
When adding biography or photo captions avoid using flagged keywords like hack, crack, giveaway, free followers, free iPhone… and any adult-related keywords. Be creative. Don’t use the exact same text between accounts. Use a spinner (combined with some manual editing) so you get different text every time.