Comment 5 for bug 1430620

@Egmont wrote:
"Running out of disk space is much less likely and effects the system less badly than running out of RAM, and your RAM would eventually make it into the disk (swap) anyways."

But I run out of ram space very rarely. It's highly elegant to keep volatile data in RAM unless RAM is full.

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@Egmont wrote:
"still don't think SSD lifetime is a valid real-life issue."
My particular desktop SSD is at 19% lifetime (as measured by the vendor through SMART code 202 Perc_Rated_Life_Used or 173 Wear_Leveling_Count). So yes, real people can wear out an SSD.

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Aside from that writing to disk is dramatically more system overhead, compared to RAM.
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Bash history, which is NOT kept from overwriting, is a better use of disk writes.