Having problems sending out email is nothing new. I have a fairly large mailing list (~12,000) that has developed over the past 4 years and I've seen most of the problems mentioned in the two articles you linked.
I can even add a couple he didn't mention.
=> AOL randomly truncated emails with more than 20K of text, when their servers were loaded. I don't know whether this still happens, since I split my newsletter if it runs over 20K.
=> A number of corporate filters will bounce mail if it contains any of the following:
-- an attached "somefile.exe" file OR
-- the NAME "somefile.exe".
-- an Outlook virus attachment, OR
-- the NAME of an Outlook virus
-- the words, "breast", "nude", "naked", or "bikini". (Since my sites deal with pools, spas and pool users, these words occasionally appear. For example, a sentence like: "Many spa users prefer to soak in the nude." will definitely produce bounces.
Regarding the discussion in one article of a mail server that got listed as a spammer, because of a list vandal that signed up a lot of people who did NOT want the email . . . I'll agree that that's a tough isse. In four years of emailing, the one and only time someone seriously accused me of being a spammer, it turned out a husband had signed up using his wife's work address without telling her. And, in one sense, it was: my email to her was "unsolicited" (by her), "bulk" and almost "commercial".
The position of the anti-spam community is now that "opt-in" is not good enough: you must have VERIFIED "opt-in". I'm not sure I agree, but I see their point. Problems with list vandals have increased over time, to the point where if you have a list as large as mine, it become inevitable, unless you go to verified opt-in, using a coded "click for confirmation" link or reply email subject. My own newsletter is on hold, till I can build this capability (and clean addresses that bounce).
There's no question that having to protect against spam causes problems. All forms of security do so. Burglar alarms are a terrible nuisance, but sometimes needed, because burglars are an even worse nuisance.
But I wasn't suggesting that every webmaster can use every technique I use -- most can't -- but rather that some combination of these can produce a (relatively) low cost reduction in spam, which I take to be a good thing.