You don't need to, just be aware that re-posting within the 30 day payout window could be seen as spam. Others might flag you.

You can find information on posting times in various other posts. Some seem to think that AM EST is the best. Around 10 or so.

steemshovel.com Is a better search engine for finding posts than the built in one.

You may also want to consider verifying since you are easily recognizable in an internet search.

In order to prevent identity theft, identity deception of all types, and content theft we like to encourage users that have an online identity, post for a website or blog, are creators of art and celebrities of all notoriety to verify themselves. Verified users tend to receive a better reception from the community.

Any reasonable verification method is accepted. Examples include:

• A post or tweet on an established facebook, twitter, Instagram or other social media account with a link to your contribution on Steemit.
• A reference to their Steemit account on their website or blog.

Thank you! ☙