Care to cite your sources on this or do you just always work from a fully-engaged shotgun of hyperbole?
Correct. I'm not expecting users to do anything with them except send them. The memory dumps that CCleaner cleans are crash dump logs from blue screens of death, not AOL Instant Messenger or some such. Blue screens of death, like kernel panics, need to be fixed immediately or data/computer loss occurs. If you don't send the reports and/or just delete them, your problem never gets solved. Since end-users don't know what "memory dumps" are and probably won't even notice that CCleaner is cleaning them away, there is nothing for a technician to work from once they finally take their computer into a shop (which of course will be after it's too late anyway). Sometimes OCA will directly tell you that your memory is bad/failing or that your hard drive is failing. Are you telling me you'd rather not know about that kind of information? Would you rather not help others find out that their hardware is faulty through Microsoft by way of your sent dumps? OCA aggregates information to better serve those who send them.
Yeah, I guess not; they're just taking up mere kilobytes of space that could be better served by something more useful, like tracking cookies.
Why? Cleaning it a year from now is the same as cleaning it right now. The prefetch data is deleted and new ones are put in place whenever new or updated applications are launched. It rotates all the time and has an upper limit set. It's pointless to clean it, period. It's placebo bullshit.
Then turn off the prefetcher through its registry setting. That should be an enjoyable experience!