The "bullets" you see aren't added by the list-style...they are added on style.css line 1914:
.art-postcontent ul > li::before, .art-post ul > li::before, .art-textblock ul > li::before {
bottom: 2px;
content: url("images/postbullets.png");
display: inline-block;
font-size: 0;
line-height: 0;
margin-right: 6px;
position: relative;
vertical-align: middle;
}
You can override that code with something like:
.art-postcontent form ul > li::before {
display: none;
}
You aren't getting the form submission because the server validation is still looking for form fields "Best_Day" and "Best_Time", which you must have removed at some point. You'll have to remove them from the server validation as well, that can be done by deleting lines 15,16 manually or from within the Server Validations Server Behavior UI.