(These comments were left here in kellinator's journal. I finally remembered to go grab and copy them over. I hope she didn't feel too trespassed upon since she didn't know me.)
This is the typical result that happens for projects that start off as a "community" or personal project and end up as a "business".
To clarify, I'm a paid user, I rarely post over thrice a day, and I haven't posted a quiz in over a year. However, I find the post limitations, especially for paid users to be undesirable and a bad "business" decision. Like you said, it makes me less likely to have the goodwill of putting more money into livejournal if I feel like I'm thought of only in terms of what monetary contribution I might make.
Moreover, I have a severe problem with posting limits because many paid users use their journal for more than simply writing a terse and uninteresting account of their day. Many use livejournal to write fiction, poetry, or post assignments for their students (I know a couple teachers who use livejournal for that purpose and it's honestly better for less web-saavy people who don't know enough about web-design to create their own webpage or pay for webspace if they can't get it free somewhere). As much as I abhor quizes and boring posts, if that's what they pay for this service to do, then they should be able to do it.
Plus, I think this is even more ridiculous for one very important reason: less than a few months ago, the developers mentioned removing the codes and allowing all new free users to sign up because the server drain had significantly decreased and the load had become more stable.
I know you don't know me, but I was followed a link here from my friend, arkhamrefugee. Thank you for your very pragmatic and thoughtful look on the issue.
I'm off to class for the day; I'll check this again when I return tonight.