Please add a report suite setting to remove all ASCII characters below 32 (non-printable chars) from incoming data.
I cannot think of any need to have them (tabs, linebreaks, bell-signs, ...) in reporting but they currently can break reports, exports and even raw data exports.
Yes, it's not suggested/allowed to have them in the s.xyz variables, but you know...
Advanced solution could be to replace whitespaces (tab, linebreaks) with spaces and remove all other.
Yes, please! crlf in campaign tracking codes are only funny the first time you see them.