I contacted them and this what they said to me
Dear zer0,
Thank you for contacting HTC support regarding your HTC Wildfire.
I understand you are enquiring about the locked bootloaders on our handsets.
The reason we have locked bootloaders is due to the amount of repairs we have to service, as other ROMs damage the phones.
It is for this reason we no longer allow other ROMs to be installed on our range.
I trust that this resolves your query, please do not hesitate to contact us again if required.
I hope that this information meets with your requirements, should you have any further questions please do not hesitate to contact us again. If this response has resolved your query, and you have no further questions please close this ticket by following the link below. Upon closure of the ticket you will be invited to complete our Customer Satisfaction Survey which should take no more than 1 minute to complete.
To send a reply to this message or let me know I have successfully answered your question log in to our ContactUs site using your email address and your ticket number 11NLCW22ENA000059.
Sincerely,
Olga
HTC
Dear zer0,
Thank you for contacting HTC support regarding your HTC Wildfire.
I understand you are enquiring about the locked bootloaders on our handsets.
The reason we have locked bootloaders is due to the amount of repairs we have to service, as other ROMs damage the phones.
It is for this reason we no longer allow other ROMs to be installed on our range.
I trust that this resolves your query, please do not hesitate to contact us again if required.
I hope that this information meets with your requirements, should you have any further questions please do not hesitate to contact us again. If this response has resolved your query, and you have no further questions please close this ticket by following the link below. Upon closure of the ticket you will be invited to complete our Customer Satisfaction Survey which should take no more than 1 minute to complete.
To send a reply to this message or let me know I have successfully answered your question log in to our ContactUs site using your email address and your ticket number 11NLCW22ENA000059.
Sincerely,
Olga
HTC