First off if you Looked past the "Different FC names" you would see the same crest, the guild creation around the same time and only 1 or 2 people in said guild, This is obviously the same person or group, try actually looking next time. you say they have it for "RP purposes" which might be the case in 0.000001% of those who do it. The rest are RMTers (Buying 10 plots and selling them on reddit for real money is RMT guy), those who want to flip the plots for a large return (Often 5 to 10 times what they bought it for), and those who feel like big men/women when they have 7 or 8 plots and fighting FCs over a plot to the point of attempting to get them banned (Happened to my FC leader but he won over this person)