Its probably people just trying to spam with network with minuscule transactions with 0 fees, Itll clear up eventually.
False. Please do research before posting or not not post at all.
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i just want to add that spam attack he probably had heard and now is talking about is about the old spam attack that was happening (it was never with 0 fee) instead it was with lots of transactions with minimum fee. if i remember correctly it was 0.0001BTC with 0.0001BTC amount of fee.