As he explained this to me, his motivations are (a) primarily, using the comment box forces him to be curt, because of the word limit, and so he doesn't end up spending large amounts of time on the site (some of his early answers were mini-treatises, and I think he wants to avoid the temptation to write them, because of the time they take); (b) as a secondary consideration, he finds reputation silly, and is happy not to be involved in that aspect of the site.
]]>What odd motivation...
]]>One workaround is to search the comments table in the database dump, but that's a bit of a pain and only works for comments you left before the last dump (which is the case here). Another workaround is to use google. The following search seems to do the trick just fine: site:mathoverflow.net "Paseman, 2010.03.23". If you hadn't added the extra signature, google would still work just fine with a search like site:mathoverflow.net "density of deficient numbers"
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