1. Really depends on the topic. For certain subjects, you can express a similar or identical opinion, but add in terms of arguments, examples, evidence, different way of looking at things, etc. In general, the forum relies on the principle of "freedom of constructive speech".

2. This is probably one of the biggest forum's issues nowadays so it's understandable that people are pissed. The people that are against it hate it - be it for "selling out" for a few bucks, littering the forum with bright and annoying ads or degrading the forum's general quality with thousands of zero value, quite often incoherent posts. I stand somewhere in the middle - I know it's a viable way of earning Bitcoin, especially for those without any easily digitally monetisable skills, but I thoroughly despise all the spammers that use this to flood the forum with their garbage non-content.

3. In case you haven't noticed, the rules are listed in one of the stickied threads in this board. The issue is with the number of spammers. While we could hire 10 - 20 full-time moderators (increasing the forum's expenses exponentially) and try to crack down on all the people spamming, several existing moderators proposed policy changes that would quite effectively cut off these spammers. We tried bringing up the idea to theymos, yet we haven't received any response for quite some time.