Admins putting more restrictions on newbie accounts? I doubt if that will happen. At least not anytime soon.
I think that you misunderstood the first post, OP didn't suggest admins putting extra restrictions, but bounty managers agreeing not to allow newbie accounts joining campaigns.
I don't think this will somehow limit the number of new alternative accounts if managers change the rules.
Participation in the bounty is no longer a goal for many "new" accounts. Accounts appear that are grown to participate in subscription companies. Some newbies follow the pattern, earning merits from Ratimov, from OgNasty on merits topics. And then hunting for merits, they quickly get the rank of "member", after which they start spamming a lot in threads.
Its true that those more capable/experienced ones will easily find a way to get couple of merits and circumvent that restrictions either via one of the giveaway threads, or making some bullshit story and writing what other members want to hear, therefore showering them with merit, like in
this case, when someone allegedly went from first time hearing about LN and implementing it to having 4 different persons paying via LN, and all that in a matter of couple of hours. Easy 63 merits from that bs story. Rinse and repeat.
It would still stop bunch of clueless ones that never left bounty section and have no idea how easy is to get the merit. But as i said earlier it won't happen as its not in the bounty managers interest, no matter what they say.