2. Alert message before posting.
Considering how many accounts were banned because of copy and pasting, it may be worth to add warning in the field of sending message..

I think this is a good idea and I've suggested something similar before, but with warnings for people not to post threads in the wrong subs. For instance a warning like
Posts about the discussion of Bitcoin's value do not belong here but in Speculation in Bitcoin Discussion, and in Press:
This board is for news about Bitcoin only - Do not post alt coin articles in here etc. Would help cut down on a lot of needless time wasted from staff having to move threads that shouldn't be posted there in the first place.
Now that we have a 1 Merit requirement for Jr. Members, I suggest to extend this to anyone who wants to post on the Altcoin board. My original post including Veleor's suggestion to post it here:
The main idea isn't to stop real users, and I do realize they'll be "collateral damage", but this may be the only way to stop paid bumping bots. Copper Members shouldn't be restricted either. This will give the spammers something to lose. Currently, a spammer can
create 6000 accounts in a day, which is enough to bump many threads for a very long time (and earn a lot of money from it).
Just 1 Merit (or 0.00208333
BTC for Copper Membership) per account can still be abused, but not at this magnitude.
I really don't think this is something theymos would go for as he doesn't want to limit people's ability to post here which this does. All it would do is put off genuine users whilst the people who came here to abuse the forum would just grin and bear it.