Daytrading IRA margin account--IB only?

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Quote from Haroki:

So to get around that, you'd need to split up your 50k into a few streams, say 3-4, and then keep track of where you stand, making sure that each stream, if reinvested immeadiately, isn't sold within that 3 day period..

Is that about right?

I wonder why IB says it's a 'margin account then? Maybe because you can reinvest immeadiately?

Misleading marketing practices? Every broker should allow doing that in a Cash account unless it's been put on a 90-day restriction, where purchases can only be made using settled funds. For Cash accounts in good standing, every broker should allow the use of unsettled funds to make a purchase of other stock, but if you sell that second stock before T+3 from the funding transaction it's a freeride that triggers a 90-day restriction the first time and closure of the account the second time.

IB misled me on the phone by telling me that they have a "special exemption" that allows freeriding in IRAs. If they gave me false information, then they are doing fraudulent marketing and i'm glad that i cancelled a transfer into a new IRA account with them.