Growing your professional learning community is a great feeling. However, you do need to keep an eye on those new followers. Sometimes, they are up to no good! They may have found your account randomly, or they could have gone unnoticed in the account of someone you follow or that follows you. YOU have the power to protect yourself, and YOUR followers safe from spammers and bots.
Check your account regularly.
And do YOUR part! Make sure YOUR profile doesn't get confused for a spammer or a bot. People connect with people – not logos (shadows). Show potential followers that you're a real live human!