A general hint: As Alistair suggests many images on web pages (if available to copy) have the suffix .webp, copying then editing suffix to a TM acceptable .jpg allows them to be displayed on this forum. This can be useful to show an image of a product for example.
BTW it makes no difference to complexity if you use any other external image hosting site since tm-img is also external to the TM forum. Note also images above 100 x 100 can be used succesfully to avoid fuzzy avatars hence my comment this limit can be ignored.
