I've removed the specific comments about your suspension for a variety of reasons but mostly because they're unnecessary and making assumptions that aren't based in reality.
I'll say another thing... and this isn't about tone policing but "vote bombing" is a very charged term. The general term we use for this is "targeted voting" and it can refer to both up and down votes. These are generally caught by our system and removed automatically with no intervention by any people - as was the case in your specific situation. If you are sincerely looking for help understanding a situation, please avoid using terminology that escalates the situation and puts people on the defensive - it generally leads to people reacting negatively. It's a self-fulfilling action.
Communication - the exact content of your mod message - is private and moderators should not discuss this. The fact of your suspension is not private and is visible on your profile. This is what people are basing their statements on, not any lapse in confidentiality.
Neither the person who asked that question, nor those who left comments or answered it are moderators on the History site and none of them would have any access to the information about your suspension other than being able to see the banner on your profile. Additionally, as mentioned in another answer, downvotes require 125 reputation, so most people here on MSE wouldn't be able to downvote any of your posts there - only people who participate there to some degree would.
On a deeper note, I've talked to the moderators on both History and Mythology about this situation and found nothing concerning in their actions. It is, indeed, quite unfortunate to have a very enthusiastic new member of a site run smack into a wall because of misconceptions about a site's scope or quality expectations. We try to avoid this as much as possible, which is why we have things like rate limits in place.
You have many questions but you frame them in ways that are problematic - in some cases, your questions are overly-reliant on quotes from sources with little explanatory information. We need questions to avoid relying on the title of the question alone. The body should be the primary place the question is formed and evidence and effort is presented. The title should serve only as a brief summary to help others understand the top-level question.
Other questions aren't detailed enough or are completely off topic. The guidance you've been given in comments, close notices and mod messages are there to help you better understand how to meet the expectations of our sites. Please, take the time you have during your suspension to listen to them. Read them, slow down and read other questions and answers on the sites and get a better understanding of how we ask and answer here. Jumping in without this effort often leads to situations like this.
When your suspension is over, consider editing the questions that are on topic to improve them and meet the concerns the users are raising with them. I understand that downvotes and question closure can feel very personal but they are not intended to be. Know that the interest isn't to block you from an answer but to make sure that the site has high-quality, focused, on-topic content that will be as useful to future visitors as it is to you.
I honestly believe that no ill will is felt towards you specifically and that the main point of concern others had was the rapid influx of questions that needed improvement on some relatively quiet sites. Making an effort to learn how we ask and answer questions here and improve your style will be well-received by many and will often lead to questions being reopened and upvoted.