I said that they have not been profitable to the taxpayer. I pointed out that the conclusion that they've been profitable to the tax payer is based on flawed cost accounting methods and cited the paper.
In the paper, the author very explicitly stated it was not profitable to the tax payer, directly calls out the misleading nature of the ProPublica tracker, explains why it's misleading, verbosely explains and justifies a more accurate cost accounting methodology, describes the results of using this methodology, and commentates on how these results and the methodologies that produce them may be used in the future to make more accurate and less misleading cost assessments of bailouts in the future.
I've directly quoted the paper numerous times in which the author clearly states that the bailouts were not profitable to the taxpayer, flaws in methodologies that indicate they were profitable to the taxpayer, and why different methodologies are needed that more accurately reflect whether the true cost of a bailout results in a situation that is profitable to the taxpayer.
In conclusion, and to reiterate my original point. The bailouts were not profitable to the taxpayer except when using deeply flawed cost accounting methodologies such as ex post cash flow analysis, which the author, in great detail, explains is a woefully inadequate for measuring the cost to the taxpayer of a bailout.