No it does not obey the 4N+2 electrons... it has 4 pi electrons... it is anti aromatic however the ion is aromatic which explains its relatively low pka value of 15-16 which is on par with alcohols which are generally 16-18pka
This is not an aromatic compound because it didn't satisfy two of the rules for aromaticity. This ring has 4 double bonds, which means it has 8 electrons participating in pi bonding. According to...
An aromatic hydrocarbon (abbreviated as AH) or arene (or sometimes aryl hydrocarbon), the hydrocarbon with a conjugated cyclic molecular structure that is much more stable than the hypothetical...