I have noticed this a lot about the lack of caution from some people who have attained certain ranks in the forum. At the point when they were rising from newbie to jnr member, then member and going upward, you will notice the caution they use in ensuring that they follow up with the rules and regulations guiding the forum as well as ensuring that their contributions to the forum is topnotch and that their posts and replies has no reason for a plagiarism check to be carried out on it. But along the line, because they've ranked up and might even be participating in a serious signature campaign, you see this tendency of relaxation in them and before you know, they start defaulting most of the forum rules and regulation and their account might even be giving negative tags and in some worse situation, there account might even be banned.
When you say find this a lot I will disagree with the banning part, newbies or low ranking accounts still remains the highest to been banned, probably @LoyceV could come prove the stats right.
Yes once an account ranks up they tend to get relaxed on two cases, one is they understand the forum better and feel it is more like a public place and not a work place where you need to act all too serious about. Secondly, at a lower rank they need every merit they could get and as such they are very formal and too serious.
Those who later get negative tags might be something of reputation damage either through engaging into shady business or two users have differences and they resulted to the use of tags. The banning due plagiarism could be as a result of just getting caught late but surely has been on it from start or a ban evader that ranked up new account.
While you strive to rank up, make sure that you as a persona is also growing your IQ and intellect so you don't grow to be a hero member or legendary that makes the kind of contribution that a jnr member should be making. Or make the same mistake the newbies do at the beginning.
Forum Rank doesn’t equate knowledge, some newbies could be better.