Unfortunately, some people spend their time detracting from Stellar for their own gain rather than contributing to make the whole network more valuable. Below is a community-sourced list of most scams. Please contribute by editing the list.Edit List
Scammers will pose as Stellar or Stellar partners on Twitter and tweet out or DM instructions for giveaway traps. Now suspended accounts include @lumens_stellar, @stellar_teams, @org_stellar, @orgstellar, @StallerOrg, @strongholdexchg, and @stronghold_xchg.
Scammers will pose as Stellar on Facebook and share your profile picture if you like the official Stellar.org Facebook page. The shared post will include instructions for a giveaway trap. Here's a screenshot of an example: https://imgur.com/pl0RFNd
Scammers will message members of the Stellar subreddit with instructions for giveaway traps. Here's a screenshot of an example: https://imgur.com/a/K7Q8d
Scammers will purchase domain names that are similar to Stellar or official Stellar partners and attempt to steal traffic and deceive people. Examples include mobus.network instead of mobius.network and fairxexchange.com instead of fairx.io.
Scammers will email you from email addresses that look similar to Stellar's or Stellar partners' domains with instructions for giveaway traps. Here's a screenshot of an example: https://i.redd.it/hez4w40r08c01.jpg