This unofficial FAQ explains why it can happen and what to do if the situation persists.

but i have not evaded any of the guidelines

You are mixing quarantine with not being indexed. That is not the same, it just looks the same.

The suspicious activity, sorry, the potential suspicous activity is not about the guidelines. Might be a positive result in Itch's scanners or however they tune their systems. There do be a lot of malware and scams being uploaded daily. Better they quarantine first and asks questions later, so to speak.