150x300 would rekt users who have data caps, especially for large images. 150x200 or 175x200 might be a good start, but adding this change has to be done on a per-style basis, which can be quite time consuming, especially if we're using styles we bought directly from the XenForo resource marketplace. New avatar sizes will come, with time, but keep in mind that it we will have to cater to desktop, tablet, and mobile/phone users as we don't want a giant avatar showing up in threads for each user and that's all they see :skully
