What happened was you suggested quite a number of minuscule edits that only edited out "Ubuntu" from the question title and ignored / overlooked the question body that did need quite some improvements as well.
So, I and others had to review the edits based on their merits, meaning significant efforts to improve the post were approved and other lazy attempts were either outright rejected or improved upon and marked as unhelpful. For example, compare your suggested edit against what I ended up editing it into.
Since too many of your edits were rejected too soon, your ability to suggest edits has been temporarily revoked for a week or so.
When you are able to suggest edits, I would suggest you try to really improve the quality of the post instead of just removing "Ubuntu" from the title.
And regarding edit privileges, the reputation requirement has always been at 2000 rep but you do have the ability to suggest edits without the edit privileges.
