In the forum, there will be instances wherein even though you are genuinely certain that you did not imitate others idea, your post will still be deleted or reported. It is at some point hard to make up an idea that originated from you completely cause most of the things we post comes from other people's collaborated idea and expressed by us based on how we understood it.
You may misjudge how people will report post for deletion. In addition to the quality of post that do not meet quality standard, repeated, off-topic or plagiarism post are some of the thing that other users will report for removal by moderator. I never thought that someone would report a random post without reading anything the poster wrote for deletion and if they did then the moderator would also check the post before acting.
OP, however intentional or unintentional plagiarism will also be considered a violation which can be strictly enforced by moderators. It is still possible to get waivers if the user is a good contributor while on the forum and for any purpose plagiarism then I think it should be avoided. Be a good user and follow all the rule, you will enjoy it.