In text messages, as well as emails and forum posts I will use some.
It sounds like the OP is receiving messages of only emojis? If so, that strikes me as out of hand.
I believe emojis are not only useful, but critical in communication.
In forum posts, it is easy to misinterpret statements. Face to face communication provides visual feedback cues as to what the speaker is saying. We process hundreds of these unspoken cues in every face to face conversation we have.
None of that exist in emails, texts or forum posts. Emojis, while not as good, do give us some visual feedback.
The can tell us if the speaker is angry, sarcastic, happy, ecstatic, etc.
I find the reserved use of emojis helpful.