If you want to hear back from someone, you should include some contact info in your message. Email is best. There is no social media here and no one will be comfortable calling or texting you. Someone might reply to a physical mailing address. Can't promise, but someone here usually has envelopes and stamps. Probably they'd use a fake return address. Anyway, look forward to hearing from you. And if you don't want to hear back, that is just fine. You can say what's on your mind and leave it at that. Take care.