The answer to the question depends on the specific MANU forum/group in question. It is possible that the forum or group is populated by Tezos users who are botting, but it is also possible that the forum or group is populated by users who are genuinely interested in the project and care about its progress. If it is the latter, then the spike in new wallets could be indicative of increased interest in the project, which could be a positive sign for the future of the project. However, if it is the former, then the spike in new wallets could be indicative of a pump and dump scheme, which could be a negative sign for the project. Ultimately, it is impossible to definitively answer the question without knowing more information about the specific forum or group in question.