What does it mean if someone tells you not to put your picture up online because others can take your picture and use it to do witchcraft on you?

If someone wants to cast a hex on you, we don't need a photo to do it. As long as there's a clear image in mind and an intent, it can be done. Realistically, though, a witch isn't going to go out of their way to curse a random stranger. That's just asking for trouble.

I live in Salem,MA...witches don't do that...that's voo doo

I hope it doesn't mean I could turn into a bat. People hate bats, I'd hate to be a bat.

In some Wiccan circles, people claim to send blessings and or curses to another just by imagery alone ...

Supernaturally terrified.

can someone send me good luck and good fortune , Mainly the Fortune please X

I say, don't tell me how to live my life.

I wouldn't call catfishing "witchcraft" 🤔

it means they've been in a cult?

It means others can do voodoo on you

It means they're daft🤭

They’re on dope

It means they’re incredibly superstitious and think you are, too.
There are practical reasons for not posting one’s photo; it could end up in Google Images, some search engines might be used to identify you—but none of that involves witchcraft.